I wouldn't say there is a huge line up, but here's a solution:
The resort itself has many ATM's. I've found that midway through Saturday, the one that is closest to the show runs out of money. Sometimes it does, sometimes it doesn't, though it did last year. There is another ATM near the front desk, and I believe another near the restaurants hosted inside the resort. Hope it helps!
Some vendors take cards, others don't. The best rule for the show however is to remember the adage, "Cash is King" and come with money already in your wallet to try to subvert any mishap. I know the bar inside the smoking tent only takes cash, so you're better off to try to get away from plastic as much as possible.