I've used Dollar for 20 years in Las Vegas. This trip last week was probably my worst with Dollar. I tried the trick of renting one vehicle for 24 hours, then returning it and getting another one for the last four days of my trip. That was probably $50 or more cheaper. That would have worked fine except that there were NO vehicles in the parking lot either day. Seriously, maybe 3 Mercury Marquis, which I wouldn't choose anyway. As a Dollar Express member, doesn't this defeat the purpose of fast service? Anyway, I had to wait about 20 minutes the first day, and about 15 minutes the next. The second day, I went upstairs to talk to a manager, and he either played dumb or was dumb, because he "was not aware" there was a shortage downstairs with the cars. I'll continue to go with the cheapest rate, but as a long time Dollar customer, the service is getting worse. Yes, I think there was a convention in town, but how about some planning!!