captd-
What a great example of an absolutely basic principle!
Works for C-Dorys and just about everything else.
Improvements, especially very specialized ones, may not return their cost very effectively, and can only be justified by the need for and the anticipated use by the current owner. An unexpected premature sale of the boat may well result in the exotic improvement yielding very little return. In the extreme form, the expensive modifications may even make the boat
less attractive to potential buyers than if it didn't have the extra equipment!
An unfortunate fairly recent example* of this in C-DoryLand was a Tomcat 255 set up as a dive platform with compressor, dive ladder, and extensive other modifications. Great if you wanted a boat to dive from, otherwise........
Some modifications are less risky, like re-powering a boat with a new 4-stroke engine which would replace an aging 2-stroke. One could probably arrange all the modifications possible on a sliding scale from the most financially secure to those least likely to return their investment dollar.
Of course, central to this thinking and decision making process would be an evaluation of how long one intended to keep the boat to recoup their investment, but their is always risk based on an unplanned event that would force selling of the boat prematurely.
As always, it pays to plan ahead!
*Used for illustrative purposes only, and with my highest regard for the former and current owners!
Joe. :teeth