Don't mind some of those other helpful comments.
The folks at the genius bar just reinstalled Mavericks for me (a complete wipe of the hard drive and OS reinstall following a crash of epic proporttion) and what was missing? iPhoto, iMovie, Garage Band. All gonzo.
Now I suppose it could have been "user error" and "I chose to do that" but the fact is that I didn't choose to do that, and I had no input or involvement in the situation at all. Maybe the folks at the genius bar screwed up, I'm not suggesting that they didn't. And maybe I am responsible for the outcome because I chose to take it to Apple for assistance. Maybe in some universal sense I am responsible for all of the actions that flow from my choices, no matter how tenuous the causality, but I don't think this is a philosophy forum.
Nonetheless, the fact that it happened under those (presumably) controlled circumstances by a professional suggests to me that there is more to this puzzle than a knee-jerk conclusion that you (or I) somehow caused the problem.
But, it shouldn't be surprising that for some folks it is way easier to be caustic and condescending than actually admit that they may not know the answer.
Maybe we should just be happy that we don't have iPhoto, because that thing is a stinking pile of instability.
Good luck Gas Man, good luck.