The only negative thing I can think of about that Morgan full keel is it doesn't back up worth a damned. It prop walks in both directions, depending upon the day of the week. However, one of the other great benefits of that full keel is you virtually cannot snag a crab pot or lobster pot float even if you run right over it. I've hit thousands while sailing at night in Chesapeake Bay and never, ever snagged one - not one! When I had my Catalina 27 with a fin keel, I snagged one every night I sailed after dark. I not only snagged them with the keel, but also the rudder and prop. Other than that, the Catalina 27 was a great boat for someone sailing singlehanded, it responded well to minor changes in sail settings, and it really came up tight into the wind, much tighter than the Morgan with a full keel. So, yes there are some benefits there as well, depends upon what you are looking for in the way of benefits.
Good luck on whatever you decide upon,