I know, thats what I said, you open a hobby store (since its something we all like and the topics about) you follow successfull buisness models of other stores, things like keeping new kits in stock, discounts, having the catalog online for people out of driving distance to purchase from you. You make deals with non mainstream companies that make resin kits and such to carry them in your stores, giving you something that other walk in hobby shops dont have. You hire a staff to work there so you dont have to, just come in once or twice a week, or sit in the store and build and supervise. Have other people do the crap work.
Since your owning the store, and it isnt a chain or anything, you dont have some coperate a$$ telling you 'oh order these kits' you know what kits are nice and new and people want and you order those, instead of the same old revell kits.
Heres a good example, in michigan there is a store that sells almost nothing but gundam model kits. Normally that store wouldnt stay open long, being so specialied, but they sell their stuff online, and have a MASSIVE cataloug which has almost every kit that was put out in modern times and some older ones. They do very good buisness, enough that they have redone their site with a 110% pricematch garuntee and weekly deals of 50%+ on a single kit. Its a small buisness all in all, if you call them your likley going to get the same nice people every time. Their prices are very cheap, not much markup at all, and the shipping is very fast. They do very good buisness