As with anything, the quality (or lack of it) is often remembered long after the price has been forgotten. So perhaps have a think about putting a bit of Christmas money towards the budget and get something good that fits your requirements and will last? After all, there's not much fun in getting a jacket that doesn't fit well, rustles like a packet of crisps every time you move, and/or is cold and draughty but somehow still manages to 'sweat up' when you climb up a hill.
There's a nice selection of jackets on the Country Innovation website; from their top-of-the range, double-layer Ventile 'Rover' (Yes, I have seen the price, but how many of those would you need to buy to last an active outdoor lifetime?!) to the light-weight Falcon, etc.
https://www.countryinnovation.com/clothing/jackets? There's some cheaper options on Page 2, but choice may be limited by stock/size availability.
I bought one of CI's 'Falcon' jackets around 8 years ago and love it, it's quite lightweight but still windproof, and the fabric doesn't rustle loudly like quite a few modern waterproof coats seem to do! The arms are a good length too, and there's room around the armpits, which is handy when putting a camera or binoculars up to the eyes. The hood is handy when you get caught in a downpour too. I've worn mine lots as my every-day 'work and play' outdoors coat from spring to autumn and it has lived on the back seat of my car for most of its life (unless it's got really wet and needed to be dried overnight indoors). I've found it's just the job for showery weather (which is what we seem to get most of rain-wise in Cheshire), and I can wear a fleece under it in early spring and autumn if the weather is cold, which extends its use.
It looks a bit faded now (from 8 years of wear and life on the back-seat wardrobe!) and there are one or two nicks and nibbles where it's got snagged on thorn bushes and barbed wire, so it's pretty much been relegated for use as 'old clothes' now, and I bought another Falcon jacket last year to wear for 'best'. There's still life in the old one yet, so it's place on the back seat is safe for a while longer! The only downside I've found with this jacket is that the soft, low-rustle fabric tends to snag on barbed wire, rose thorns, etc. (but most lighter-weight jackets tend not to like those!) so it's best to take care to avoid thorns and fencing wire. Hope this is useful to you (and others) and you find something to fit your requirements and budget.