Just a note to everyone: Buying the free replacement certificates with new tires is a must in Las Vegas. For the second time in 2 months, my right rear has been brutally attacked by screws. If not for my certificates, I'd be out $288 for each time.
For the next day or two I'll be riding on my track tires - my car is so funny looking now: switched back to OEM bumper due to crappy paint, now I've got the 17" wheels back on. I feel so pedestrian.

 

How much are the certificates? I haven't had the misfortune of experiencing flats, knock on wood!

 

About $65 at Discount Tire.