Not at all!
I was part of the original vanilla-crowd back in 2007 when it was called "pre-TBC" servers. Even making posts on the forum about it and how it should return (due to spacegoats )
Classic just came 5-6 years too late for me, by now I've played on several private servers clearing most content on several characters, and the drive just isn't there anymore. I got to start farming pre-bis and do Molten Core but I just don't find any pleasure it the game anymore.
Classic has ironically driven me towards retail which I enjoy very much. Much, much prefer the raiding in retail to classic.