new electronics and wiring for 4K
A man after my own heart.
In truth you wouldn't want to spend much more on a 30 year old boat of course.
In my unrealistic scenario the C309 actually leave the factory at about 102k. The extra 20k is for the extras that many people want, not you or me of course.
If you have 100k note on the tub an extra 20k is only what, another $150 a month.
The 20k would pay for, 12" gps at the helm, Radar, Full integrated ticktac stuff the whole package.