Looking on Audiogon, ML's are holding their value very well compared to other speakers and seem to sell pretty quickly, so I don't see where you are coming from. Most speakers are going to take a 40% to 50% hit right off the bat on the used market. ML's are no different.
You mention the CLX selling for almost 50% off its new price as if that is some sort of anomaly, yet there is a pair of Magnepan 20.1's currently on the 'gon for $7,000 (originally $14,000). In other words, any comparison of similar models shows that the Logan's used value is right in line with other speaker manufacturers.
I think it seems a little silly that you use your experience only in deciding that ML's have crappy resale value and interest, when you specified "local pickup only" in your ad. That alone severely limits the amount of interest you are going to get for your speakers. You just limited your market by about 99%! And then you complain that your speakers aren't rolling out the door. Especially in a down economy. You provide no other examples than your own limited experience and from that you conclude ML's have crappy resale value and interest.
It would appear that this thread is intended more to just stir up some crap than to have an honest dialog about ML resale value.