I don't get it. A $729 iPad with 3G, WiFi, and a data plan is perfectly alright, but a XOOM with 3G, WiFi a data plan, SD slot, USB port, HDMI out, camera, at $800 is unbelievably expensive? Yea, either one is twice what a decent laptop will run you these days, but at this point, with tablets being 'relatively'* new, they demand a premium for what they deliver, that a laptop can't. IMHO that is largely portability and battery life. Portability being not just weight, but the ability to use on the move. Quick startup, operate with one hand while holding with the other, are essential I believe.
*relatively new because tablets apparently didn't exist before the iPad, Apr 2010, Windows XP Tablet Edition circa November 2002, not withstanding.
Sometimes you are the anteater, sometimes you are the ant.