Guess I'm an oddball.
I feel I use my boats more when trailered.
As mentioned, marinas are expensive here in R.I. Security is lacking, held hostage to high gas prices and sometimes it's not even available at some. Nimrods bang into your boat, step across it, and I'm always making multiple trips to the truck to fetch things. Just can't carry everything in one or two trips. Slime on the hull, bird droppings, storms, shellfish droppings from gulls,, all take the shine off wet slips to me.
Even so, for a 20 footer and over I'd still mostly wetslip.
Under 20 foot(ish) I'd trailer.
Living a mile from a decent launch is nice. having plenty of state run (free) launches within 15 mile on either side of me is a added plus too.
Tomorrow I'll be picking up a 1801 and it'll live on the trailer. I'll gladly drive to the ramp of the day. Once it's loaded for fishing, it'll stay ready. Trailer and truck willbe joined pretty much for the season. (Nice having a 3rd vehicle) Because a trip to the Cape / Race / Narr. Bay / Watch Hill / Block is easilly drive near to, I suspect it'll be used much more than if I "slipped" in just one spot.
All these free ramps see heavy use most days, and the lines can be long. However, for folks like me that want to be striper fishing before sunrise generally have the ramps to themselves. For hauling out there is generally a window between 1:00 and 3:00 that is quiet.
Evenings are the same. After 7:00pm they are again empty. I can be in / out in 10 minutes. Less time than it takes to carry stuff to the boat at the marina and square away.
Plus I can "tinker" with the boat at my leisure in the yard close to water, elect, tools, and beers. Don't worry about things walking off on their own, people beating the tar out of it with their boating expertise at docking, etc.
The money saved makes for some nice road trips to the Cape (etc.) with lodging if desired.
Love the smaller boats for these reasons. Like bigger boats. But for me, 16-20 foot is just fine.