I didn't cry the first time I watched EoT. I ALMOST did, but not quite.
Upon watching various fanvids afterward, the very first time I cried was not a scene of the regeneration. No, it was that damned scene of the Doctor waving at Sarah Jane and the shot of Sarah Jane crying/smiling and the look of *knowing* on her face. Just thinking about it as I type this makes my eyes want to water.
Since then, I can watch fanvids without crying... until they throw that freaking Sarah Jane clip in and BAM, I'm a mess from there on out. LOL
I do find myself more emotional now in re-watching the actual regeneration than I was when I first saw it. And I really can't stop watching it...