I look around my studio and see just about all the instruments I'll ever need. And I look at my software list and see that I have years of exploring and learning to do (and may never get it all "down").
So, as I've said recently (elsewhere) my G.A.S. (and S.A.S.) has passed and unless I see the odd sound library or truly unique FX (that I don't already have) for ~$50, what more do I possibly need?