'I'm sure and being that they are basically one not two heads full of valve gear much more economic to manufactuer and price up. For a few years in a row when I was attending the NYC Boat Show, I would always ask the Yamaha factory guy when Yamaha is going to answer the call for a 175 like Suzie did to compete, same block as their 150. They said have no intention.
Was surprised to hear they went all the way to a I4 (Inline 4) 200. Now Suzie has to step it up. I recalled Verado had a supercharged 200 thought was an I4 but memory is what it is. Yamaha website has full product specs on I4 200.
I expect the I4 200 to be closer in price to the I4 F150, but we will see. It has to be a lot cheaper than any V6 4 stroke except leftover / excess inventory etc deals, simply because the extra 100 lbs plus for V6 is all intricate machinery.
The dual connectivity may jack it up.
I'm sure ETEC will show up with their next video boat pull stern to stern where they showed their V6 150 pulling an F150 equal boat backwards underwater on a hole shot, presuming all things are equal. I like the effects of competitition. Yamaha Fs were the only 4 stroke V6s that can't retrofit to same centerlines as any V6 twin 2 stroke did. Basically too fat, a lot more expense to seal (properly) and rebore 8 transom holes on repowers. Of course I expect to see others have done it but they don't mind their engines contacting eachother, but yamaha does, added 3 more inches to spec.
Engines are a big bart of our boats, little I see anymore here motor tech stuff. i.e. what ever happended to the F400 V8?, Yamaha factory rep said it was designed for that nameplate.
You use your motors many hours, I see a repower again one day for the Islander. Great resale on the F150s. Now you have another choice, perhaps a close enough price adder. Same goes for me on the Sailfish, but little use relatively speaking. I suffer from the have-to-work-too-many-hour-syndrome!