Urges - Why?

Man, I do for some reason just get urges to play certain games.  I really don't know why.  And often times I don't suggest them to my Wife just because I know we've played them a lot and I don't know why I want to play them more.  Almost like I think of them as guilty pleasures.  Isn't that strange?  I think these are the top offenders:

Ra: The Dice Game - I should really get tired of this one.  There isn't a whole lot going on, and it does feel the same from game to game.  And yet the decisions are just interesting enough and the situations unique enough to make me come back.  I'm probably going to give in again soon.

Ascension - I don't think it's an awesome game.  But it is fun by golly.  I want to kill some monsters.  I don't care that I can't really plan my deck out.  I don't care that the center row seems jumbled as piss most times.  I just want to whack a cultist over and over.

Carc: The Castle - The second Knizia.  Maybe he's on to something.  This one is odd.  It breaks a lot of carc standards, and yet it still feels like carc.  I also like the balance of the point sources.  The fight over the biggest house always seems charming to me.  It just has that certain touch...