That is quite an accomplishment, it must be very satisfying to get it all together at last. I've known a few guys that were very interested in trains, one had a layout so large that he needed openings in the middle to service or get access to something. His layout was the second floor of his garage, he had been in the railroad business as a kid. Another guy simply collected Lionel trains, no layout. He collected and rebuilt engines and cars and had all of the wall of his basement covered with trains. His wife would give him grief and his reply was "That is your retirement down there". When he died he left a few numbers for her to call, she sold everything to a couple of guys for over $100K at least that was the story. Both guys knew each other, I'm sure its a close knit group.