The RG570EX has a floyd rose, which are good until you break a string :x
Personally, I can't stand them - I mean, they stay in tune, but restringing can take hours.
Once the novelty of a whammy bar has worn off, and you stop using it completely (not saying you will, but most people eventually do), you'll still have to put up with restringing those pain-in-the-arse floyd roses.
Though it could be annoying wanting to play Eruption or something and having a guitar without a whammy bar... :? :? :?