Parking was the biggest problem for me. I arrived at 5 PM and parking lot behind hotel was full. They offered $15 for me to park at a venue that was "a couple minutes" away. That parking lot had no attendant - yet they wanted me to pay for the "privilege" of walking in the rain to park my car anytime i needed to use it.
For the price i paid per room, it's needless to say that i think parking should be included, at the very least - especially if i have to walk off-site for it.
I ended up paying the next-door hotel for parking, which felt like it was on site at least. And it was cheaper then theirs fee.