I have experience of card markets from URs, and you are able to cut people a deal or just plain lend them the card there, but if no one likes you then you are going to have to pay top dollar.
I have said elsewhere that the market will be flooded with set 11 cos of Ateils attitude to alts.
I have also said that the market will suit me as I like oddball cards that will be sold cheaply.
The market when it opens will take time to settle and I find playing the market very enjoyable. I hope you will all see how much a part of the game it becomes. Just as the forums.lol
I can't really see that much bad coming from being able to pinpoint cards especially when you have a large card pool and it no longer makes sense to do the random lotto , boxes and packs.