I have a Steel case Leap V2 and yes a chair can be expensive, I think I paid like 600 for mine, but you owe it to yourself to get a comfortable chair your back will thank you. One of my biggest recommendations is to see if there is an office liquidation center near you that way you can walk around and try a chair out before you buy it, also this helps you find a chair you like and then you can look to see if people are selling that chair for cheaper. These chairs are long term investments but they are worth it in the end.

I just hope it comes to Steam also and not just Windows games.