The Morgan is a center boarder so shallow draft
which is a nice to have feature for cruising the Bahamas
. It is undoubtedly better built than the Catalina. Age is a matter of what is going to need replacing. You don't mention the age of the Catalina but assume it's pushing 20 years old. The engine
may be older than the one on the Morgan and starting to need major work. Rigging is relatively cheap
to replace if you do it yourself and both boats may be in need replacing as recommendations are to replace at 10-15 years in saltwater. Same goes for sails
and running rigging possibly needing replacement. The Catalina could be more beat than the Morgan if the maintenance
has been kept up. The Catalina is more of a commodity item with a ton of them out there so fairly easy to determine a value. The Morgan has a limited upper value because of it's age and design.
Basically it's a question of your budget, condition of the boats, and whether the room of the C36 will justify the higher price
I have a soft spot for the old CCA designs. Used to race
against the Morgans in a Chance 30/30. They'd eat us up on a reach and hold their own with the chute up.