Hi Vaughn,
Buying extended support for Outdoor model APs is a good idea, as they are otherwise
only replaceable in the first year. The APs are designed to be hermetically sealed against
the elements. The QA mean time between failure (MTBF) test results for T300 are:
@25C = 1,616,485 hours
@40C = 1,116,486 hours
@50C = 762,105 hours