You should start buying bikes that need a bit of work. That way you can get dirty, fix them up and sell them on for a bit of a mark up. They don't have to be falling apart, just a little rough and needing a clean and a tidy. That way you can keep the bike buying addiction going, buy lots of different bikes, ride them all and sell the ones you don't want to keep. Wish I had the space you had, it's what I'd be doing in my spare time (and I'd probably get divorced for it...)
