Sam's Club offers its members the Heimplanet The Cave Tent for $449 with free shipping. (Non-members should buy a membership for $45 to avoid the $45 surcharge.) That's $250 off and the lowest total price we could find. It includes a hand pump for inflating the tent, features a 54 square foot area, and fits into a 20" x 12" x 8" backpack when rolled up. Deal ends December 1.