It's really not possible to generalize "decks people prize", especially not into 8-10 decks. I can think of a good 15 decks off the top of my head that are worth more than most of those decks, and even then, that's just monetarily. Everyone has different tastes, so they prize different decks.
Anyways, if you're looking for market values of these decks, eBay probably is your best bet, because eBay IS the main market.
I'd suggest looking up "completed listings" to see how the decks are actually selling. Just because someone has an LTD listed at a Buy it now for $200 doesn't mean the deck's actually worth that. However, when you look at the completed listings and see a couple of different listings of the LTD's have sold for $40-$55 recently, It's pretty safe to assume that's a good average of the market value.