You are kidding, right? Yanking our chains? "Does it have any value"? Yes, if you could get it loaded onto a U-Haul in a week, enough tables rented at the Chicago O Scale Show next weekend, and trucked there. There are probably some rare items buried in that: locos, cars, and structure kits. I see brass from the past in that...
worth money. It would be a job to clean it all out of there, space needed to clean it and store it, and shows and the internet auctions for years? selling it, but....
Or, as mentioned, run it through Ted Maurer or the NW Indiana train auction house.
Would depend on what you had to pay for it and how much time you wanted to devote
to selling off what you don't want.....
Lemme know if it gets auctioned? I'd like to see that all spread out on tables...
