Based on pics before I got it, I agreed with the $150 assessment on the SSC Han Carb, but in-hand I did feel like the set was worth closer to the $200 range. I was much more impressed with it in-hand than I thought I'd be. There's some stupid, standard Sideshow errors on it, but it's a pretty great piece in-hand and a big step up on their previous effort (which I also owned, but had sold.)
And the way I rationalized it, this whole "wait for HT" thing only gets you so far - even IF HT announced it at SDCC, it wouldn't ship until END of NEXT YEAR, and even if they had announced it at SDCC, would it end up as yet another "never went to PO" item like the nearly a DOZEN HT Star Wars items that have been previewed but then go for years without PO.
My feeling was I needed a Han Carbonite now, not a Han Carbonite that MIGHT be announced to release in a year and a half - and might also be announced and NEVER see release at all.