Adding my two cents relative to the guitar you were looking at: I think the SC250, weigh its hotter pups, was marketed towards heavier players, who tend to run heavier strings and drop their tunings. The adjustable bridge allows for intonation adjustments in those situations.
I personally love the non-adjustable bridge, but I mainly play 10s in standard, with the occasional drop D.
BTW, if you don't pick it up, let me know where that '08 SC250 is. I miss mine a ton!