The only place I can find Weetabiz locally (other than World Market, and it is 3 times the cost!) is Target. Loooooove the Target. Ours is a Super Target, and they keep the Weetabix right next to the Kashi stuff and Uncle Sam stuff.
We go through at least 1 box a week, usually two. My son Philip has had 2 weetabix biscuits every morning for the last 10 - 12 months, and my husband does the same. I like some occasionally as well, but not as much as my husband and son. I think they'd shrivel up and die without it.