seems that we aren't seeing these notes up for sale that much anymore
True: but a couple months ago an FDY went for about $190 and and a FEE went for about $150. I believe a BEK and BEL were for sale around the same time so I don't know if they drew a lot of attention and drove the prices up. Many a collector and supplier tI know who have these notes wants book+.
Perhaps they may start dropping in price soon?
I wish! I'd be surprise -- they're being sold in a trickle.
I rarely see the so-called common 2001 FDZ at shows. The rest - ocassionally. but they're like BER's, BEK's and BEL's -- they go fast (first thing in the am). The demand seems pretty steady. "bubba" you've done well to save those notes!