That would depend on what you expect to get from it.
For example, I sometimes shoot at kids nurseries. The last one I did, there was about 80 kids, shot over 2 days. There's no guarantee of any orders, so in theory, I could spend 2 days there, do some basic editing, provide proofs etc and not sell a single image...not a great scenario.
As it was, it yielded just under £2K, so yes, worthwhile in that situation...but it's pics of kids, one can assume you'll sell photos providing they're of a decent standard. As for your situation, like I said, what can you conservatively expect in terms of orders? How much would you need to take in order value for you to be satisfied, at the very least? How many orders would you require to reach that level? Is that amount of orders likely?
It's a bit of a gamble, really...you have to weigh it up, and then decide whether or not you think it's worth a punt...