Including it in the ticket price is the best way, but at a minimum these things cannot be cash only anymore. At Stafford like I said in the other post before I found the money in my car I was told by the track worker that I'd have to go to the closest ATM at a gas station down the road and come back. So imagine that's probably what's happening in Nashville right now where a lot of people don't have any paper money and need to get out of line, turn around, withdraw a 20 somewhere, turn around and get back in traffic/the line to park for a second time, and then finally get in. It creates a massive inefficiency just because a track can't get with the times.