I opted out of CareMark for two reasons: If I'm going to be away, I don't have to worry about my meds sitting unattended; and, when I'm away I can get refills anywhere in the nation without a hassle.

I use Walgreen's and am able to schedule refills online, put them on express pay (copay goes right on my credit card) and I can drive up to the window, grab my stuff and drive away. That may not be a priority for everyone everywhere, but for a gimp like me, in -20° it's a real plus. They also automatically contact my docs when it's time to renew my scrips. I get an email when they start preparing it and another when it's ready for pick-up. I'm sold.