We are staying at the Hilton Garden Inn when we fly out in September. Parking is included with your room for 10 nights, and we are paying $119. You need to park your car at a lot next door, but we do that right after check in and dinner, so in the morning all we have to do is get our luggage down to the hotel shuttle and head to the airport.
I don't feel it's that much different than parking at the hotel itself, as it's just a shuttle ride without luggage back to your hotel. Unfortunately, I don't know of any hotels that let you park at their lots for an extended time. My manager lives up there, so I will check with her and see if she knows of any, then check back in here.