I'm kind of in agreement Patrick, but I did upgrade R2 to R4 and Phoenix to Nimbus, I thought the subsequent plugins offered enough to justify reasonable fees. Would I like everyone to upgrade everything for free? Sure!
I do draw the line at paying for bug fixes, or at least egregious bug fixes. But new features, better sound, and/or more efficient processing are things I'm willing to pay for, to a point.
I hope that iZotope will keep the plugins alive, that's probably my biggest concern. There are other reverbs out there - some quite good ones, but I've gotten quite comfortable with Nimbus and R4.
Time will tell!