I have a cheap(-ish?) chair from Ikea, and it's pretty much perfect for me. It's probably the best chair I've had so far. Definitely beats the gaming chair I had some years ago... My impression is that gaming chairs are mostly all the same, with little regard for ergonomy. I don't think I'm getting a gaming chair ever again. (Well I suppose what I called a gaming chair wasn't sold as a gaming chair, but it was exactly like one, with less flashy colours though.)