Well I live in San Diego, so it might be worth a trip in the future to crab a few bags...only issue is I have a Corolla and saw a co-worker put a Green Flash 15.5 gallon keg in his car...it dropped a foot.
Dragging your bumper for 90 miles might negate the price. I pass two LHBS's on my way to morebeer about twice a year for my base malts. Its about an hour drive for me, so I go to my closer shops for most other items.