Is it just me or is it bizarre that the AirBART machines take credit cards for a $2 transaction, but the BART machines do not? And I mean not just the perpetually broken old machines, which don't take credit cards at all, nor the impossible-to-use charge-a-ticket machines, but even the new machines which STILL enforce a $20 minimum! (though at least now I think you can print 5 $4 tickets.)