I agree Hardy and Brady bags are expensive but they are an excellent long term investment and if taken care of, will give a lifetime's service.
I had one for years until it was stolen along with all my other kit.
This year, I had to renew all of my kit and the one thing I ensured was a good game bag in which to transport my kit...luckily I picked up a mint conditioned used 'Liddlesdale' bag at a bargain price from one of the forum members and it was probably the best purchase I made and expect it to see me out if I take reasonable care of it!
If it's a stocking filler that you want then something along the lines of the following will probably suffice... it just so happens that I'm thinking of getting my grandson one as a stocking filler too
Lineaeffe Fly Fishing Classic Trout Bag Olive Green 025 | eBay
Tony