Looking at the list you posted on Twitter the other day there were a few in there that were less than stellar toys I thought.
I skipped inferno as I thought it was a repaint for repaints sake.
The voyager Alpha Trion was a bit meh in general, as were most of the voyagers in that line I thought.
The Elita-1 is OK, I'm happy to have her because of the potential other combiner and she's the only incarnation of that character we ever had. Also, I've heard she does it better than the starscream version of the mould.
Blitzwing was a surprising letdown to me, I'm not sure what I expected but I prefer the previous generations version.
Dreadwind and Blackwing are nice updates, but I feel they should have had dedicated voyager moulds with powermasters and a new core transformation rather than rehashing aerialbots.
The Ss Grimlock looks great but I'm a bit disappointed with his articulation and lack of tabbing bits together in dino mode.
I can't comment on the siege stuff, and I've skipped the other movie stuff you have as I'm happy with what I've already got.
So I don't think you're being harsh, perhaps you're not being selective enough in your purchasing given your collection reducing habits over the last couple years. On the other hand, you've had a chance to play with these, now you can sell them for a bit less second hand, you probably got 5 or 10$ worth of entertainment out of them.