Using your PRICELINE links, I booked a fullsize with Hertz for $20/day (5 days, crossing a Friday) in Vegas. I probably could have started lower, but I'm fine with the price considering most of the rest of my trip is nearly free. I tried $20/day for a convertible, but that didn't fly. Oddly, when I started looking yesterday, the recommended bid was around $35 for a convertible; today they recommended $55. Thanks for the info!