The studio's next VSTi purchase will more than likely be Waldorf's new Largo softsynth.
This synth which was announced, of course, at the 2009 NAMM show, seems to contain all the good things about the Blofeld hardward synth that came out last year. I couldn't justify paying $800ish for a DSP based hardware synth, when all I really wanted were the filter drives modes that it contained. So needless to say I'm VERY happy there's a VST version which appears to contain the same filter drive modes which produced some very tasty results when I played around with the Blofeld last year. Hopefully a demo or some samples will be out sometime soon!