Interesting list: There is no turn based RPG among the best selling games, but there is no rtwp RPG too. I see Diablo3, Skyrim and TW3. If anything, the list tells us that complex party based RPGs ( tons of races, classes, abilities and game mechanics) are a rather small market in general, no matter TB or not.
Prof. Dr. Dr. Mad S. Tist
World leading expert of artificial stupidity. Because there are too many people who work on artificial intelligence already
Prof. Dr. Dr. Mad S. Tist 
