I liked them. I picked them up occasionally, sometimes on impulse.
Even got excited enough about them near the end of the skirmish game's WotC support to play in a couple of pre-releases. (Mostly for the promo minis and the excitement.)
I was sad to lose those when they canned skirmish.
I'm somewhat disappointed now, too. (Mostly because I wish I'd been a more dilligent collector and picked up a few key pieces.)
However, it's not really going to effect my game. I could sometimes impress my players with a new, well-sculpted mini, and once in a while my collection would inform my encounter design, but beyond that they didn't change too much in-game.
Besides, I do have a fairly decent collection as is, so I can still occaisionally use pieces that are more visually engaging than tokens.
I'll mostly miss the anticipation of a new set, and soaking in the aesthetics of the latest pieces I've extracted from their box.
I've thought about supplementing my collection with the unpainted minis from Castle Ravenloft or Wrath of Ashardalon, but they're just too expensive to justify, since I'm not sure how much mileage I'd get out of the boardgames themselves.
Ah well. One less thing to tempt me while perusing the game store.