I find the complete opposite. You find general run of the mill UNC $1 1954 notes, they don't go for much at all, you get a run of them in sequence, the price flies through the roof per note. I've seen this similarly with the 1970s series notes. It doesn't make a whole lot of sense, but I see this all the time, and not just buy it now asking prices, but auctions. However, because the $50 are higher denomination, I can see that limiting the market slightly, specially when looking at 11 in sequence. $550 face.. I bought two consecutive AU $50 notes for about 175. I'm not sure the book on them off hand, but thought I got a deal.