I realize this announcement is quite late but tomorrow morning 9 a.m. - 1 p.m. but for what its worth to Baltimore area and folks ... there is a trains show at the Arbutus Volunteer Fire Dept., 5200 Southwestern Blvd. in Arbutus, Md. The fire hall is located just minutes off I 95 and the Baltimore Beltway I 695. $4.00 admission. There are no operating layouts or club layouts..... just folks selling trains, structures, accessories, etc.
Although this show is small, one can find some great deals!! Over the years, I have bought custom structures, locomotives, scale freight and passenger cars and DCS system all for amazing deals. ( i.e.: brand new DCS system $150. ) No guarantee that you may find that special piece you've always wanted for a great price, however, this show is worth checking out.
Bonus - the fire hall is located directly across from Amtaks NE corridor main line to DC. Lots of 1:1 scale trains!!!