Sorry about that....sometimes I swear I'm dyslexic or something.
I did a quick ebay search, but can not find anything on the old displays for the .45 sabers. Odd, because I thought I saw an auction for one not too long ago.
As far as older .45 sabers. They seem to be going for roughly the same value as if you purchased them from MR directly. Generally, the ones no longer available are going for a little more, but nothing too drastic. One big exception to this is the weathered ANH Obi-Wan saber...those things go for up around $80 US.
The ones that do consistently go at high prices are the Gold, Dark and Bright chrome exclusive sabers. Luckily, these are the ones you don't care about.
Hope this helps out a little.