On one hand, it's five dollars. I know that if there is ever a chance that I will want to play this game, I should pick it up now. Rarely does the XBLA game you want go on sale so the general rule is to pick it up when you see it on sale. As far as the reasons why I would want to pick it up, that's about it.
For the reasons against, I didn't really like Pac-Man Championship Edition. I bought it at full price and maybe put in a couple hours into it. I don't really care too much about score based games and replaying levels over and over doesn't appeal to me. And while CE DX has new modes and versions, I can't help but feel a little burned for paying for the full version which is now included in the "Deluxe" version. Essentially I paid the same price for a third of the game.
Another reason I really I'm against picking up the game is because of the atrocious controls. D-Pad? Analog Stick? I think it's a choice between two pieces of crap. The frustrations of making wrong turns with the game speeding up isn't exactly my cup of tea.
I did watch Nolan and Brad fiddle around with their copy of the game however. Some of the puzzle modes might have seemed interesting and picking a couple cheevos here and there isn't all bad...
Pass or Play?