The difference is between the sales tax you actually pay, and the NV tax. So if you buy it in CA and don't get it delivered to you here in NV, which has its own set of hoops, you pay CA tax and NV lets you off the hook. If you go to OR or UT, you pay NV sales tax.
And yeah, the sales tax is stupid for a state that passed that tax simplification bill or whatever a while back. But, since 90% of the population lives a short drive from other states with tons of dealerships, ours would get their asses kicked. They'd basically be expensive Jiffy Lubes.
