Since I haven't seen anybody else respond yet, I figured I'd throw in my two bits.
I think it's a good idea, but likely a slow starter here. Most will either send out the painting to be done professionally, or will do it themselves with rattle cans. I would personally love to do painting professionally, but I don't have the space or equipment for that. I do have a friend who does, and I may drag my current build out to his shop and borrow his equipment for it.
As far as rattle cans, that's pretty well covered here and on the net. I don't consider myself to be a pro painter, and I certainly don't know everything. I'm proficient with the rattle cans, and pretty decent with an airbrush. I've done a small amount of work with HVLP on aircraft. I know how to get good results. I also tend to spend too much time cruising the forums and giving assistance in other areas. It's tempting to add myself in here as well, but just don't have the time.
I'm not convinced we need a special club/section just for this. Would be happy to be proven wrong.
I have a hammer! I can put things together! I can knock things apart! I can alter my environment at will and make an incredible din all the while! -Calvin