Hello, oddly enough my name is Josh as well. I'm also a re-watch addict. I watch reruns of shows like The Office, Seinfeld, Family Guy, King of Queens, etc all the time. And with a collection of 1200+ dvds, I watch movies over again all the time as well. I've seen every one I own at least twice. That even includes the really bad ones (I'm looking at you Epic Movie, Disaster Movie, Wicker Man, The Happening, etc).

I don't think it's really all that weird to rewatch things over again. It's the same with all mediums of entertainment. Hell we re-listen to music all the time and that seems no big deal. People like to re-read books all the time as well. For the most part it's just because it's a fun experience. Whether it was a good book or a good movie or a funny tv show, it provided just what it was meant to: great entertainment. And we like to revisit that.

Then again, sometimes I also just rewatch movies for the sake of rewatching them, out of boredom. To remind myself that they were in fact pretty much garbage.

cuz whats good?

See its Wierd but I actually never... Ok well RARELY pick up a video game that I set down.
And the ones that I do are the classics.. so Nostalgia has got to be big factor for video games at least but with TV series... At some point I say Enough I cant watch this episode anymore! but perhaps 10 years from now or sooner I will feel that nostalgia that I do with Supermario bro's 1,2 and 3 and Metroid and Mortal kombat 1,2 and 3 etc etc.
But even those game's I never pick up for more than a hour or five, so what does that say?