I sell everything I build-
A lot are done on comission or I Ebay the rest. I get anywhere from $150.00 (for single vehicle, etc.) to $600.00 for dios, etc. No where near what I have in them (Not even at $0.05 per hr.) but it keeps the shelves empty for more kits and also helps pay for those kits.
There are a ton of collectors out there who would love to buy your built stuff- I bet you would be surprised- I know I was. And after selling a few the comission requests come in. Start at 5X kit value for basic builds - 10X for lots of aftermarket, etc. Take lots of pics and lots of correcspondence is mandatory- Comission is OK- make sure you WANT TO build that kit- building something you dont like makes modeling work- and we all have enough of that-
JD