I'm surprised the number of people who are still so obsessed with going fast especially with the price of gas still going up. (But in reality not that many people are going anywhere, nevermind going fast. This past summer powerboats barely moved from Fairhaven Shipyard.)
Out to the Canyons in a 35 foot Blackwatch we only did 22 knots.
Out to Cuttyhunk in a 25 foot Mako we only did 20 knots usually.
But hey, usually this is on boats that are fished 3-4 times a week.
And honestly, having spent my life on boats and around boat yards and having known plenty of people with both I/Os, outboards and inboards, the I/Os and inboards had less problems hands down.
Lets not mention the ficht debacle.
And I/O engine parts are typically cheaper. You buy the parts at NAPA, not the boat yard. (Unless you like being ripped off.)
And please for those of you with outboards, stop buying your marked up "special" sparkplugs at the boatyard, they're not special. No matter how many times the dealer sprinkles charm powder on your head. Throw a set of Bosch Platinums in em and be done.
You want reliability? 30 foot lobster boat hull with an inboard cummins turbo diesel, dry stack, and keel coolers.
And you can fish year round in comfort.