I'm still picking up the key pieces because in the end, $50 isn't worth the risk of that one figure being the next Yondu and they you're SOL. But for some of the more eccentric items, I'm inclined to wait and watch the social media traffic. The less I hear about a figure the less inclined I am to get it now. Surprise, finally got Ahsoka yesterday...but I waited.
All that to say I think this is short lived.
This is Sideshow (and others) clearing a LOT of backlog, or finding the means to at least. At the same time it's an excellent hook and sinker for someone who's been tiptoeing around the hobby, but not wanting to commit. If you look around the net, you'll see a lot more "finally got my first ever HT" (it rustles my jimmies when people use the word ever like that but I digress). And it usually is coming from one of the SS sales. We know this is addictive, so make some lost leaders out of the leftovers.
I suspect that once the last 3-4 years of figure stock rinses away, the daily deals will go back to the more bog-standard stuff that SS used to try clearance out.
But yeah, I still get hit once in a while with an "ouch, that's $50 I'll never get back" (Rex comes to mind).