Trust me, there's a reason for that. I've had the chance to check out a bunch of the hairstyles in-game, and overall they are pretty bad. Classically "Maxis Bad," which shouldn't be surprising. You'd think that they'd eventually stop making hairstyles that look intensely pixelated or helmet-like, but I guess that's just wishful thinking.
I defended the curly haired style in an earlier post, saying it didn't look too bad to me. I'd like to rescind that comment. It's awful.
So far, I've found two of the female hairstyles to be okay: the ones with the upswept bangs and barrettes are decent looking and seem to be pretty well-animated (particularly the wavier, fuller one), but they still have pixelated, unnatural textures and are far from great. If I saw them on a freesite, I would pass them by without a second thought because the quality isn't even close to some of the free hairs out there (Nouk, anyone?). The rest of the styles run the gamut from pretty crappy to utter garbage.
I'll try to post some pics soon.
Edited, because I just saw the link, to add my thoughts on
this:
Ew. Ew ew ew. I saw maybe one thing in that entire slideshow that was even useable. Perhaps some of the clothing meshes could be put to good use but a talented creator, but other than that, I see very little of legitimate value. Almost all of the clothes are complete fug as they are now, and the furniture and decor items are particularly appalling. Who the hell would want that crap in their house, even if it
is just in The Sims?