Why turn pro??? Then you have to make it a job and it won't be fun anymore. Just build, enjoy, and sell to make room and money for more builds. I 've been building for a long time and my quality I feel is not close to what other modelers do, yet I seem to be able to find people who are attracted to my subjects and ask If I want to part with my model.
And I know what you wife is doing, mine does the same thing. She thinks that are clutter and dust collectors and tries to get them out of the house. I finish a model and my wife goes out and sells it off before I can get a chance to oogle at it. But hey, more money and room for more models eh?
Scott