Using a SuperDrive temporarily for one time installations? Does Apple (or any oter company) have such a service which would let you temporarily use a SuperDrive (or other external DVD Drive)? I have a MacBook Air and in order to install boot camp, I need an external DVD drive. Paying $80 for a one-time use of a DVD drive sounds absurd. For that reason, I was wondering if Apple or any other company has some kind of service which allows you to bring in your laptop and use a SuperDrive for one time installations. I wouldn't even mind paying for such a service as long as it's significantly lower than the $80 for a SuperDrive. 

Any other ideas besides buying a cheaper alternative of the SuperDrive?
You can use the CD drive of any other computer (Mac or Windows) on your network, for free. See this Apple doc for directions.