Whatever you pay them, someone will be paying tax on it, no matter many weirdo schemes they try. They can hide the tax in their sales prices, but at the end, it will still be paid.
Frankly, why skirt sales taxes? At least they go to useful stuff on the state level like infrastructure, public transit, healthcare, and education. I can understand being pissed about Federal taxes since the money gets wasted on wars abroad, but state tax is actually useful.