Amazon takes half off the price of this TomTom XXL 540TM GPS Navigator, dropping it to $129.99 with free shipping. This is the best price we could find by $37, which was at BestBuy.com. This GPS has a massive 5" touch screen (most are 4.3"), so you can see your route more clearly. It also comes with lifetime map updates, so with over 7 million points of interest you can always know the best way to get to where you're going, even if you need to reroute for a pits top or for gas. Sales tax is only charged in KS, KY, ND, NY, and WA.