Age of Conan goes Free-2-Play today or tomorrow.
It's odd, because the truth is that I ragged a lot on this game when it came out, but AoC has somehow become my favorite non-WoW MMO. I'm not 100% sure why, but here's a list of reasons that you should try out AoC.
It has a very different feel than a lot of other MMOs. The setting feels older and rawer. A lot of MMOs feel quasi-Medieval-Renaissance, but AoC is Bronze or Iron Age.
2. Similar, yet different.
AoC is similar enough to WoW that it's easy to adjust to. But it's also significantly different, and at a deeper level than you'd expect. For example, AoC is a tank-healer-dps trinity game. But the default group is 2 tanks, 2 healers, and 2 dps, and that makes the actual experience very unique.
It often seems to me that AoC tries new things at a deeper level than the other game companies. Sometimes they fail, but I give credit for the attempt.
The music in Cimmeria is amazing.
Give Age of Conan a shot. You might be pleasantly surprised.
One piece of advice, you really need a good set of keybinds in this game. It makes a huge difference. I use the numpad on my keyboard, and have 4,5,6 bound to the direction attacks and 1-3 and 7-9 bound to specials.