My current chair causes severe back and spine pain, and I can't comfortably play games for more than about two hours. I'm looking for an affordable chair under $150 that's comfortable, supportive, and durable enough to last for a while. I'm located in the United States.
2 Answers
Are you shopping in the United States? Recommendations can vary a lot by region, so that detail would help narrow down some suitable options.
Check local office-supply stores as well as gaming-chair listings. A basic ergonomic office chair may offer better back support and durability than a cheap gaming chair, especially in this price range.

Yes, I’m in the US.