I hope Kerry continues to do this - it is the right thing to do. Individual states have the right to establish their own sales and use tax system. Citizens in this country still have the right to choose where to live or where to shop. Maybe this will send a message to Massachusetts that their tax code is onerous. The cost of the yacht is irrelevant to the principle.
I'll bet he ponies up for political expediency, though.
If I have to pay, he has to pay. Especially since he is the Senator from MA. He likes raising taxes, he can pay them just like me and you.
His wife and him pay less on a percentage basis than we do by parking their money in muni bonds BTW