In 2012 the Reds failed to score 700 runs for the first time in a decade. The team's lead off hitters hit .208/.254/.327. The team's OPS v. righty pitching was .710, below league average of .720.
Choo is perfect to help fix these problems and I, for one, would sacrifice Mike Leake and more to get him.
This is all hypothetical, I doubt the Reds will go for Choo. Probably they'll sign Ludwick and get a Coco Crisp type for CF. That would be fine with me.