This often becomes down to personal choice, how you really plan to use said boat, and what you can afford.
Sometimes an extra 1000 in funds can make a big difference in what is available to buy. I really like getting to my old v-hull boat with the newer 15 hp motor that has electric start. No fuss, no hassle, just get in to warm up and go. My sexier duck boat has an older 25 up 2-stroke mercury and it's always a bit of a mystery on how many cranks it will take the first start of the day.
I wish I had saved another $1000 up and been able to find a duck boat with a "better" motor. In time I will pay another chunk to buy the right motor. Unless someone out there has a 40 hp 4-stroke with remote steering they want to sell.
Of course than you need to buy backup hubs/bearings for the trailer, anchors, spare boat parts, flotations devices, boat blind etc that we don't talk about when discussing the initial purchase with our better half.
It's been fun working to develop another hunting option, but isn't a great first choice in my area. When it's all said and done the refuges have a lot more birds, are WAY cheaper, safer, and a ton less hassle (at least to get started).