I came close to buying all four, but I really only needed 1 as I'm having problems with another BenQ I bought. I'll probably be replacing this computer in the next year, so 1 more should do me. I lost my good BenQ DW1655 a while back and was able to buying to get in on the deal from Unity.
Couldn't almost believe my eyes when I came across a NIB on eBay seeing as they are several years old! If you think twice about buying, it's gone; so I immediately purchased the first one!
I considered buying the other 3 and reselling them for a little profit, but thought someone here needed a good drive for a decent price.