Name some of the gaming series that you feel have changed so much or embraced such a totally different audience that they've left behind the older fans. For me, Total War is one of the few series that has NOT done this, which is why I love it so much.

Series that left me: The Elder Scrolls. Daggerfall and Morrowind were fantastic, deep, thinking games with nuanced storylines. Oblivion and by all looks of it, Skyrim seem to have made the unfortunate decision to take the median marketing bullseye of the console market and made that the primary design philosophy with linear story, autocompass pointers, and a lack of world depth or complexity.