I think that Sony had three years of models, the A2000, A2020, and the A3000. They had one major problem with light engines/optic blocks. The situation was pretty much fixed with the A3000 but by then Sony decided that the bigger profits were with LCD flat panels. I still have a 60A3000 which has a wonderful picture and compares very favorably with my 2013 Sony.
So you're the one that still has one working!
I think the BLOB destroyed Sony's rep for LCoS and scared off buyers, fixed or not.
Interesting. Many folks getting the Sony 2013 new R550A series are experiencing screen "blobs". Are these related? The later serial numbers seem to be better: I returned one and now have one with spectacular uniformity (blob-less :)), but I was I find the choice of words curious.