I chose a small trailer boat,reasons being,
1.got a roof top tent so no car toper.
2.the boat is ready to go,just slip it off the trailer and your there.
3.if you dont wont it, just unhook it,can leave it somewhere eazy.
I gues the big thing for me is with a boat comes a lot of other stuff like, motor,fuel tank, aws, anker & rope,life jackets,fishing gear,and what ever els you need to take and it all has to be stowed in your 4by or tailer.It's amazing how much sh#t there is when you see it all lay'd out on the beech.
I'v got my trailer set up high to match the 4by and it tows well over the rough.You dont need boat ramps with your 4by,a carlm beech or river is all it takes, to eazy, I'v draged my 14 footer all over the place on and off road.