Kinda like vehicles... You can make it as nice as you want but when you break $30 you are in sketchy territory for sales.
I dont' like it much myself but the ARC isn't a bad toy at all for $30, same with the gunship, and while the ARC's not hot this year (I'm amazed), the Gunship wasn't hot in the past when kiddies weren't around even really... CW, Saga... Gunships were a dime a dozen.
ROTS they're not so, but they also didn't ship much and have a "rare" mystique about them so people are buying them to hoard, scalp, or as trade bait on top of kiddies actually being there... So I'm willing to look at that with a grain of salt as being positive. If the ARC Fighter isn't selling well then to me $30's just a pricepoint people don't want to go to.
$20 JSF's moved fairly well though and some areas never saw AT-RT's and stuff. Price can make or break specific areas of the line and I agree that it can be a deciding factor for figures too.
I think $5.88-ish is sufficient, that was what a lot of ROTS was costing as I recall. $4.77 is really nice though, I'd like it to stay in that $4.99 range because I really felt a lot more value out of the majority of figures. The higher price gets though, the more Cat Minn or Passel Argente start to look like a real ass reaming where you get just a chunk of painted plastic, and not much of anything else.
$6.99 and everyone's got super articulation or close though? I'm in on that.

But last I looked Carkoon Fett's lacking quite a bit, as were some of the Hoth figures... So I ain't counting on a massive quality increase (decrease seemed more like it to me).