I'd prefer to buy one local if at all possible, and actually just bought one here last week myself.
It's 100X easier to do work on a vehicle that hasn't been exposed to 7+ years of salt, snow and corrosion. Even if there isn't any serious frame or body rust, the oxidation on nuts and bolts etc. makes working on them a PITA.
I guess in your case you just have to ask yourself how much a difference of 20K miles and minimal rust is worth.