But at the same time, if Verizon continues to have a poor selection of Windows Phones, then as WP continues to increase in marketshare more and more customers will go to the carrier that has the better selection of phones. Long term it is in a carriers best interest to have the best selection of phones. In the future I could definately see myself switching carriers if Verizon is chronically behind on their phones.
Years ago it was really hurting carriers to not have the iPhone, and really boosting AT&T. The only way Verizon balanced that out was improve their phone selection (by getting the iPhone).