Re: 90hp vs 115hp
Going back to the initial question, is $1800 worth upgrading from a 90 to a 115? My feeling (and I have a 115 4 stroke), is that seems a little steep. I would try to get it down to under $1500, obviously the lower the better.
I think a few things that everyone is missing is that you can't always compare price differences on motors from some place like Iboats. First, you have to get the motor shipped. Second, you have to get the motor installed. Third, there are some motors that are simply in short supply. 115's have been one of those motors all summer around here. There are also batteries and props that come on new boats that you don't get with just a motor.
IF, the dealer already has the 90 installed, for example (don't know if they do or do not), it is a lot of added cost and time to swap a motor around especially if the shop is busy. There are some brands that are coming from the factories pre-rigged and ready to go with motors. What we don't know is if the 90hp is being discounted and the $1800 price difference simply reflects that, so the comparison may not be fair, especially if it was pre-rigged.
I just bought a brand new toon this Spring and ran into this kind of stuff a lot. Heck, in most cases, if you wanted the boat, you better want it with the motor already hung on it, otherwise, you paid dearly and/or had to wait a long time.
When it comes time to sell, and someday this will happen, the 115 will be a more desirable motor than the 90. $1800 more desirable? No, but it might sell faster. It is never really a bad idea to buy a boat that is powered as high as it can be, because there will never be another exact same model out there with a bigger motor.
That 115 should push any 20 footer from 30 to 33 mph, a 22 footer from 28 to 30 and a 24 footer from 26 to 28.