i think it's due to a couple things:
first, and my apologies for the memory-blank early in the morning, is that the old owner of zildjian (can't remember his name!!) just recently (relatively) passed away, and as is always the case with that sort of situation, you wonder where the company's gonna go. i'm sure that had something to do with it.
secondly is simply that Sabian does artist signature lines and zildjian does not. neil's been around long enough that he wants his "own" cymbals, made to his specs, and it's my guess that sabian came up with cymbals close enough to the zildjian a's that neil's always used--close enough for neil to slap his name on em.
i too am somewhat shocked. i've always played zildjians (and more accurately--never considered anything playing BUT), largely b/c of neil's endorsement. i mean, neil can play anything he wants--there must be a reason he's playing zildjians, right? now, it makes me want to check out these sabians. at least they're not the rocktagons that Gil Moore (Triumph) was playing at the end of their career.
although i suppose i shouldn't be TOO shocked. he's always played Wuhan chinas instead of the zildjian ones, and his drums have switched brands several times over the years, from Slingerland to Tama to Ludwig to DW.
regardless of this fact, the fact that he's getting new drums, that he's now endorsing sabians, that Rush is going on tour this summer and talking about recording a new album is a GREAT thing. it means that he's been bitten by the drumming bug again, and after the events in his life between 97 and 2002, just seeing him pick the stick up again was nothing short of amazing. these are good things said the cat in the hat.
wade