Actually, if you think about it, the shipping costs aren't too bad if you consider that you don't pay sales tax on internet purchases made out of state. For example, the sales tax on those tires purchased on-site at PerformancePlus in CA would be around $70. It's close to cost neutral in most places to order the tires from an internet distributor.
At any rate, too late for me on a group buy. My Vreds were delivered today.