Turbine made a great decision by putting previously DDOstore exclusive items into the loot tables. This, combined with renown farming, has made me much more enthusiastic about getting chests that I use to not even bother opening even if I was recalling 3 steps away.
However, it was a mistake to make them bound to account in my opinion. These would be great items to put on the market, but they can't be sold.
Now I can understand the worry that this would cut into store profits, but I think this is unfounded. First of all, these items are exceedingly rare. I have witnessed 3 drops of such items since the update, among several hundred chests, usually in full groups (a single astral diamond, a lesser loot gem, and some sort of exp potion). Being so rare, the market is not likely to be flooded with cheap consumables.
In addition, I would expect sales to at least remain constant as people get to try out such items by getting them with ingame plat, and then soon start to miss them when they run out, and then go for the TP purchases. As evidence for this, I submit the exp. pot. I know several people that got hooked on the turn in ones, and when they run out they run to the store without a second thought. Throw in a sale, and they stock up like crazy.
The benefits of unbinding such items would be to promote alot more trade among players, especially from new to vets, as these items seem to drop pretty equally among difficulties and level ranges. It also prevents the let down of pulling a really rare item, then realising later that you have no use for it. Add in the plat sink of using the auction house for such items, and I think this move would be good for the game.