graeme_p - 9:24 am on Sep 9, 2013 (gmt 0)
The major con is its more likely to break when you get one of those rolling updates!
LMDE, as far as I know, is more "very frequent" rather than true rolling.
Most Linux distros do NOT require you to do a full reinstall to upgrade. You just point and click on the software updater, wait a while, and reboot. That is why I am quite happy with Ubuntu;s six month update cycle.