I'm willing to wait. I've had the Xoom since April, runs great on Wifi and 3G, and both my wife and I are happy with it. So I don't get high speed 4G, but the 3G works *great*, so I look at it as a nice speed boost a bit later

As for the SD card, I still haven't come close to filling this thing, so not too excited about that either.
BTW if the original statements by VZW/Motorola that the Bionic and Xoom LTE upgrade will be released at the same time are true, then all the rumors seem to be lining up. The Bionic hit the FCC with a rumored 7/28 release date (based on past FCC submission timings with other phones with VZW), which would put an upgrade a few weeks out. This isn't too far off from the VZW comments to people on the forum saying "very soon" and "just a couple more weeks".
Personally I'm dreading the 5 day wait to be without my Xoom worse than waiting for the upgrade to be available...
-Mike