redietz good tip about renting a car. In my case my car is fully depreciated... it's an 11 year old Mercedes, though well maintained and looking sharp. My son and I often thought about renting a car for Vegas trips but it is difficult and sometimes expensive to rent a car to go to Vegas (out of state).
It's about $70 gas for the roundtrip to Vegas... and we save because Vegas gas prices are much cheaper than California prices. And lately we've been using our gas comps from the Gold Strike in Jean. I still have $50 in gas comps and Jason has about $60 remaining.