you forgot the civ franchise (sid's and the galactic scifi one)rcorporon said:...
As for not being able to sell turn based games, here you go:
Advance Wars (and it's sequels)
Final Fantasy Tactics: War of the Lions
Jeanne D'Arc
Romance of the Three Kingdoms (whatever # they're up to now)
As for "evolving" I'm willing to bet Starcraft II and Diablo III will outsell FO3, and they'll still be isometric, and true to their original games, even in this day and age.
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and i'm quoting the diablo 3 part just for isometric's sake (not forgetting sims and sports games just to name a few dozens)