NO is the short answer monetarily.
The OM10 was a 'relatively cheap' mid range entry level; camera when it was sold brand new in the early 80's. As I recall, they sold new, boxed in the shop with the standard f1.8 Zoiko 50mm lens, for about £90. That was two or three times the price of a boots instamatic, or an East German Practika or even cheaper russian Zenit, probably 'all you need' kit, with filters and tripod and aluminium flight case, so it wasn't a piece of cheap tat by a long stretch, and the advanced for its day Auto-Exposure system was good, and did make it 'almost' as point and press easy to use as an instamatic.
In the right hands, it was a fantastic camera, it could do pretty much what any other camera could, and made it ultra easy thanks to the AE system, and it found a lot of fasvour with new camera buyers, particularly women wanting something a 'bit' better than the 110 instamatic they had in the hand-bag. Was for a while, the best selling camera on the market.
That, though means it was also not particularly valuable. I bought and used them extensively in the early '90's, when more sophisticated AF cameras were starting to enter the market place, mostly because they were CHEAP. I could get an OM10 body at the local camera shop, for perhaps £5, cheper than the price of a better roll of film! As such I didn't have to be precious about it or worry about chucking one around an SU bar or rock-gig!
I still have one... still use one, much battered, and it still works, and I love it! (I will confess that its more used than my single digit OM4... but that is mainly because its batteries are more often not dead! But still!)
Little curiosity of the OM10, when they designed it, they gave no 'manual' over ride to the shutter-speed setting picked and set by the elektrickery; it was a dedicated automatic camera; However the marketing men reckoned that an interchangeable lens SLR should have manual shutter-speeds, so they gave it a little 'manual adapter' that plugged into the front of the camera on an ear-phone socket; they omitted this 'accessory' from the cheapest 'kit' boxes to keep the show-room price down, and many didn't buy the accessory adapter.
Slightly ironic, that when I bought OM10 bodies, second hand in the early 90's, I picked them up for £5 or £10 in the camera shop, second hand, yet in thier glass display case, would be a manual adapter they had probably taken off the camera marked up at £5 or £10 marked up on its own for £10 or £15... IF the camera you are asking about has the accessory adapter, there's a good bet that that, on its own is more valuable than the camera itself;
Meanwhile, most shipped with the f1.8 Zoiko 50-mm lens, which similarly is beloved of the legacy-lens fans, especially MFT aficionados. It was a pretty good lens, and that f1.8 max aperture was pretty fast for its day; again, but markets change, and back in the 90's that was a lens few wanted, most preferring zooms, and many sat on shelves un-used, when they bought a 'short zoom' like a 35-70mm, or wider or longer prime, like a 28mm or 135mm, so they were, thirty years ago, a lens you couldn't even give away; but now, thanks to the legacy lens fans, they are often, like the manual adapter more valuable than the camera... not MUCH, but a bit. An f1.8 Zioko 50 in good order is maybe worth £20-£30, and a camera with one, probably not a lot different.
So MONITERILY all depends exactly what you got in your hand, whether you have the manual adapter, whether its got the f1.8 Zioko 50 on the front; what condition its in; whether the body is battered to heck (like mine!) or in predestine silver and vinal, or if its the rarer all black model; whether its light seals have given out; whether its meter is still in calibration, whether all shutter speeds work, whether the missor has lost its 'semi-silvering', and if it has lens, whether thats chipped, scratched or full of mold etc. BUT, absolutely top book, if it has the adapter, if it has the Zioko, if its in mint condition, and you even have the original shipping box... it only cost £90 new, and even a collecters example like that would struggle to match its original show-room sales price.
PRACTICALLY!!! If you want a film camera to actually USE not stick on a shelf and admire! BRILLIANT things. As my examples of the 90's.. they are wonderful cameras, that do an awful lot and dont beg an awful lot of know how or faff to do it, that, being SOoooo CHEAP... you do NOT have to be preciouse about or afraid of using hard! Which is wonderfuly liberating!
In thirty odd years, I have had the manual adapter on mine, but have to say, if you get to know the AE system, and use the compensation dial around teh ASA setting, you REALLY dont need it, and the AE sysem, able to fire the shutter at 1/3 stop increments, where the manual adapter is calibrated only in full 1-stop increments, the AE stsem is in many ways 'better'.
Lenses, particularly zoom lenses and more so independent branded 'non Zioko' lenses in OM fit are often an absolute bargain; IF you are interested in them. But better and particularly Zoiko lenses aren't so cheap, sought by retro lens fans, collectors and single digit OM1/2/3... and any one daft enough to shoot an OM4... not that I can think of ANY-ONE T-H-A-T stupid!! Lol!
As they WERE when conceived an 'entry' level SLR designed to be pretty point and shoot freindly, they STILL make a fantastic starter film camera, as they are STILL easy to use, and can grow as your know how does a very long way.. and do it without having to invest an enormous amount of money, or suffer the steep learning curve of something thats fully manual and probably begs waving a hand held light meter about... and so cheap? You DONT have to be preciouse about one, who cares if it gets dropped in a muddy puddle... plenty more out there, and all under £50 or so!!!!
So great camera to use... that can make fantastic photos.... NOT a wonderful camera to try sell, where it wont make you rich 'cos old means rare and desirable, its neither rare nor desirable, nor valuable, and never has been... USEFUL is what its was, is and will remain.. at least as long as there's film to go in one.. Maybe batteries too... unlike an OM4 Lol
