There is a lot more to consider than just brand. If they were comparable I would choose the Grady.
But like Glenn, Persistenc 2 said what brand are the engines, how much horsepower, 2 or 4 strokes & hours on engines, proof & frequency of services, then you could have serious money differences in electronics. Always make sure your deal is subject to a mechanical check out, formal survey & water test-all to your satisfaction and by persons that you pick.
Coastal Conservation Association-Virginia