As it is however they are constantly selling out so clearly they have done a great job of matching supply to demand.
You should move here. There was definitely an abundance of sets on clearance at the Targets/Wal-Marts/TJ Maxx near me. Luckily I purchased my fair share of goodies at really low prices, but they still have some sets post Christmas on clearance at some of these stores, but they aren't sets I want so I didn't buy any. A lot of the sets I've seen on clearance were the Alien Conquest and Pharaoh's Quest, so if they weren't selling well in clearance, they might not have been selling well to begin with.
With that said, I do think Lego might have too many lines running at the same time. I have been out of the loop for Lego for a while until the last year, so I don't know their usual rollout speeds, but it seems there is a lot of variety to choose from for 2012. That is great to an extent, but it will also make the waves run shorter to allow the new waves to get the shelf space. I have yet to purchase any Lego this year (other than clearance) and I don't know when I will (maybe LOTR or the Marvel sets), but that is only because I am saving my money to purchase these other lines, as opposed to buying Dino or some early City sets. I just can't afford every set I want, so many will get left out. On the grand scheme of things, having that much to choose from would allow enough consumers to pick up the slack that I am leaving and TLG will benefit either way, but for the consumer, there is too much to be able to focus on one select theme before it gets discontinued/discounted to make room for the next wave.