OSHPark's "Super Swift Service" is just 2x the ordinary price. So it depends on how big the boards are: for my last order I shelled out the princely sum of $2.60 instead of the $1.30 it would ordinarily cost for a little breakout board.
OSHPark was hit badly by the deep freeze because Fedex wasn't shipping them boards from the fab. I had an order take over three weeks, but once they dispatched USPS it was here in three days.
