Okay, visuals aside (because it does look great) The game play teasers they were showing look equally amazing. Looks like you can build your own buildings (to a point I assume), mounts are just something you beat up and ride off on, and all other forms of completely massive transportation devices (mecha, air ships, boats).
2 big questions jump out at me when I look at a new MMO...
1- Do I need a new supercomputer to run it?
Conan had this problem, and a lot of other games do it too. "We look better then WoW's cartoony graphics!!" Well, I'll tell ya, I have a problem with 'realistic' graphics.
Looking at Everquest 1 & 2, sure it looks great, but the repetitive animations with realistic look ends up looking retarded to me. Like the character is in some mental loop he can't get out of. Plus the way the characters mesh with everything else, just doesn't seem to fit. Feet don't seem like they're really touching the ground. Colliding with mounts, armor, weapons and other gear.
WoW's cartoony graphics, limited as they are, at least look & feel right.
2- Are my friends playing it?
I don't mean 1 or 2. I mean a lot of them. A good core of them. Am I going to be going into another MMO as the first person in my group of friends, testing the waters, and trying to get a foothold? No? Then I'll stick to WoW. At least there, I've got all the build up and start up resources I need if I want to start over.
Other then that, the houses, boats, all that. That's really cool. However, that's RP elements, which often get lost because the overall goal of these games is to level, gear up, and progress. It's what brings in the (in game) money to afford all the frills of a house, boat, car, air plane, mecha...