Want a big 10-inch screen,quad-core Tegra 3 power, and 16GB on onboard storage for under 3 bills? Well Costco has a deal for you. Until December 1st, Costco is offering $100 off the Toshiba Excite 16GB and 32GB 10-inch tablets. That brings the 16GB version to just $299 and the 32GB version to $349. Not a bad deal for Toshiba’s slim tablet.