Didn't in Platinum (I was kinda paranoid I wouldn't be able to beat Cynthia, so ditched Torterra mid-game). Didn't in White 2 (in my defence, I'd already used all the Unova starters in Black, and Blaziken is technically a starter). Don't plan to in Y (or whatever) because I prefer unconventional base stat distributions and animated object Pokémon (that this board will inevitably kvetch about) over animal-based Pokémon.
I didn't use my starter in Red either. But yeah, this pretty much. Didn't have a choice with Typhlosion (Houdoom couldn't be obtained yet). Blaziken, Swampert, and Sceptile were all good. Didn't like Infernape but I loved Torterra and Empoleon. Black and White's starters? Just...eww.
However history remembers me, it shall only remember a fraction of the truth.