I think there are good arguments against
electric outboards -- I don't know if long-distance travel is one of them though.
There weren't any places in the
Caribbean or Pacific coast of
Panama where I felt like I
needed a
dinghy that could plane. I do think though that once you have a
dinghy that planes, it's hard to go back.
Probably the one exception would be
St Martin, going from the bay on the French side to the Dutch side of the
lagoon, which was about 3.5nm. That was a long trip with a 2.5hp
outboard in a flat-bottomed dinghy. But even then, I wasn't in a hurry and enjoyed the trips. In San Blas, going to far away sections of outer
reefs were a lot easier in someone else's dinghy, but we managed in ours, too. Otherwise, 99% of our dinghy travel was fine without being able to plane.
That all said -- I am also in the process of deciding on the dinghy and
outboard to get for our
current boat, and I am torn between slow, collapsible, and
electric, or rigid, fast, and ICE.