I've live on 2 different boats now for the last 5 years. Each were completely different; a 27' Catalina (as an investment- tripled my money) and now on a 35' Chris Craft center cockpit which is 43 years old.
With both I immediately had a few "on my next boat I'll have to add ____ to the list of 'MUST Haves'
Now on boats of the length you are talking about I'm pretty sure they'l mostly have these things. My point is, if nothing else, rent a boat for a week in the Keys for your next vacation.. you'll quickly learn a few of those "must haves" which you'll want on your new boat. It will, at least, give you some INValuable perspective when boat hunting.