Had a great time at the show at Harrisburg mall yesterday , still going on today.
I got a simple mpc era engine and tender for my younger son, for all of ten bucks.
I found a number of used tinplate items, not in great shape but new to me. there were definitely some deals, and some rip offs of course, to be had. The only questionable things I saw really were Menards cars that were for sale for a few dollars more then what you can buy them for direct. Other than that the aisles were wide, the room was nice and there were some cool layouts set up, especially the lego one by PennLUG. I am kicking myself for the few things I didn't get, but I haven't been to a train show for years and managed to stay within my budget although it would have been very easy to blow right through it.
Had a great time, I hope others do as well.