I had to use a debit card, I do not have a credit card. I would prefer to pay cash, but you cannot make a reservation any other way.
If they charge it, I will cancel the reservation and just wing it. It *says* they will not charge anything ahead of time. But I have heard that before.
It happened to me at DC fest. I used my debit card to hold the room, then paid cash for the bill when I left... had a receipt and everything, then they proceeded to run my debit card for the same amount... locked my account up (because I have it set for a low maximum daily limit) and I literally had to call my wife on my way home to get it straightened out because I was going to run out of fuel, and had no way to pay for it. I luckily had an emergency $20 bill in the glove box, which was just enough to get me back home. Barely.