Why suddenly so many Pass Labs 350.8s available.

I suddenly see 4 available between audiogon and US Audiomart.

After a few years of praise to the skies from the reviewers and owners and people hoping a more affordable used or demo comes on the market it is now your chance to get one at almost half price. 

Anyone know why? It seems a fair number of people suddenly wanting to unload such a prized product. Did these individuals buy it without listening to it and have realized it is not their thing or has an SE edition been announced.
I have one and it is a marked improvement over my previous amp.