I've been enjoying what I've opened and collected. Went to a pre-release; ended up buying a set booster box which probably netted me 90% of the cards in the base set. I'm not super picky about the various special cards -- just having all the characters in some form and enough cards to make some thematic decks is fine. I'm going to try a Jumpstart sealed event next weekend for the "LotR Celebration". After that I may pick up some individual cards to fill in some gaps in my collection.
I think I can have some fun with the LotR sets. Though it seems like 60- and 100-card sets are huge; this game needs a 40-card constructed format (limit to 1 or 2 should cover it, I think).