If the Wifi-only Xoom is in the neighborhood of $500 I'll get it..
$799 I might as well get a nice laptop I can carry around and get a Verizon usb modem for it if I ever really need to get 3G or 4G internet on it..
Based on nothing at all I'd wager it'll be $649.
The more interesting question is when it'll come out. Rumors place it around April, but I suspect it'd be in Motorola's best interest to release is as early as possible or are able. There needs to be a (relatively) more affordable option for them to grab a bigger consumer base. Also, it might be in their interest to drop said option before the iPad 2 drops.