re: Ergonomic Chairs - back pain - worth it?

I have a fancy office chair - not $1400 fancy, but fancy nonetheless. The thing that helped my back more than anything was a $200 standing desk platform I put on my desk. I'll work sitting down for an hour, then work for an hour standing up, and on and on. It has a little lever I pull and it slowly raises up via hydraulics. Big enough for a laptop and a 2nd monitor.