But that means you're subscribing and not owning your tools!
Sorry, couldn't resist (not having a go at you or your decision, just that this kind of subscription is seen to be normal, but a software one isn't - there's no real consistency in my mind).
They're also often in humble bundles too, it seems. I'm really liking then at the moment (I rscently made myself do a track with just Cherry synths, plus BFD 3 for drums, and it worked remarkably well), and they cover a lot of more "traditional" synhs very well.