As a 5-time burner, I've always enjoyed the contrast between the orgy of purchasing that precedes arrival to the playa, and the commerce-celibate environment on the playa.<p>The fun starts at the costume shops of Haight street -- with BRC-themed displays for weeks before, and ever-more -frantic shoppers leading up to event kickoff (and even midweek for later arrivers). The CruiseAmerica RV rental place near Oakland Airport seems to be nonstop burners the kickoff weekend. (They probably bring in extra vehicles from around the country to meet the demand.)<p>As you snake up I-80, <i>every</i> highwayside REI, Target, and Wal-Mart between SF and Reno has evidence of burner purchasing. Wal-Marts have special front-of-store presentations of exactly the camper/raver/cycling/desert supplies burners need. And plenty of Home Depots, from SF to Reno, are filled with people buying building and art supplies.<p>And then: you reach the 'oasis' of no commerce at Black Rock. The contrast is beautiful; the experiment in intentional and temporary community is perception-altering, with lessons for the rest of the world.<p>But if you fail to notice that it's the wealth and specialization of a giant, competitive, cash-seeking economy that made it all possible, you're blind to the whole picture. Barter economies never invent EL wire and computer-controlled LED displays, among other things.