Jim,
I normally have two tables at this show, but did not yesterday, Good people run it, the Central Operating Lines (COL) club.
As respects to buying "junk", it is one of my favorite things to do when it comes to pre-war tinplate. Below are pics of a Standard gauge set I made a couple years ago - average price paid for these cars was $15. Seven junkers yielded these five cars and a roadside diner.
I also made this Standard gauge Diner (In honor of my baby brother, Buddy, who passed two years ago at the young age of 56) from a left over junker :
Don't let 'em laugh at you for buying "junk" - but please save some for me!