In 8 or 10 years you may be able to do as Jester does but about two years ago a fellow thought he was going to make a big killing by becoming an RC picker. He ended up with his garage full of stuff, planes, engines electronics then posted photos and the items here on RCU. He got laughed off the site with all the complete waste of money crap he ended up with. NOthing in his pile of junk was anything anyone would want today.
I bought an estate sale a couple years back and it was a huge score. ARFs new in box, engines, kits, radios and chargers. Most of it was good and sold quickly. It wasn't an on line deal, I got to see everything and look in the boxes. The ARF I'm working on now was one of the items and my partner kept it but never did anything with it so I just got it a couple weeks ago. Other then one last kit my partner kept all the stuff was gone in days. I want that kit but he is hanging onto it.
It takes a lot of years to know what you are looking at and you can't look at stuff on line. I know too many people that sell on line, some are good to deal with, others, not so much.