The states are complaining these days about not getting their sales taxes. Technically, any out-of-state mail-order/telephone/catalog/e-tailer is (and always was) supposed to collect applicable sales tax for whatever state the retail buyer is in, but it's always been a real pain in the butt for businesses to keep track of, and in the past, states didn't have any mechanism to collect sales taxes from out of state business anyway, so it's been allowed to slide in the past, sort of by default if you will.
These days, computerization and better information communication technologies are changing the old ways, and the free ride we've all enjoyed is coming to an end. The larger retailers (AKA, the easier targets in eventual lawsuits from individual states) are starting to collect sales tax now. The way I see things going, eventually (maybe soon) everybody's going to be collecting sales taxes for all the states. (Shoot! I better get my orders in to Newegg and Crutchfield soon then, huh?)