I don't find that Hot Toys have had the best QC (in my experience either). Actually, I have far more SSC figures than Hot Toys ones, and almost all of my Hot Toys have had some QC (some very minor) issues, and luckily for me (I guess), I only had one sideshow figure with QC issues. That said, I would agree that typically the quality of sculpt, paint, and tailoring is better/higher quality with Hot Toys.
But I fully agree with the prices going up. All 1/6 prices are going up, but I'm was wondering if this is SSC or Disney. Looking at the jump in prices particularly with Star Wars and Marvel figures is pretty staggering. But then again, my only complaint about the SSC Green Lantern figure is the price for what you get. Like you've said, the SSC Batman and Superman figures come with an awful lot of display options, and were significantly less expensive, so I guess it probably is just new Sideshow pricing.
Didn't stop me from pre-ordering as soon as it was available, but I'd be hardpressed to continue buying Sideshow figures (directly from Sideshow) at full pricing.