Funny, it's quite the opposite for me! I've had dedicated setups in the past, but I now have Portable Station from Frontier Wargaming. I sit on my desk all days already so I'd like to paint somewhere around my wife in the evening/days off. With the portable station, I'm set up in under 2 minutes and I can paint everywhere.
When I used to build more DIY scenery a dedicated place was great, but I barely do nowadays.