Ok, this is OUTRAGEOUS! All the hotels are charging $100 per night deposit??? I booked at the Fairmont at $89...so that means the freaking deposit is more expensive than the price of actually staying there! We're not made of money, you know. Fanime's already driven up their prices for reg to obscene levels, now the hotel crap?
It has always stated that the deposit would be up to $100 per night, yet I've never been hit with more than $50/per night at any of the hotels I've stayed at: Hilton, Marriott and what used to be Crowne.
It's the Fairmont that charges $100 per night. Which ends up being $300 or $400 for most people, yes. Your best bet is not to use a debit card, I made that mistake my first year booking a room and had no money the entire con.
Please keep in mind that when using a credit card for your deposit, the funds for the deposit will only be authorized, but not charged (This is good! It won't tie up your money). If you use a debit card, the deposit funds will be removed from your account and then refunded (Very bad!) If you use cash for a deposit, it can become even more complicated with the hotel.
To have the fewest problems with deposits, I highly suggest
using a credit card if at all possible. You won't need to present the card for the deposit until check in - it can be from anyone staying in the room.