Operating
radar units are very useful. Personally I feel a newer unit under 5 years old is worth more than a
chartplotter. New small LCD units are 900 to 1,300 plus install. Even a 10 year old LCD unit can have some significat value if the install was of high quality.
I find
radar highly useful off the coast of S. CA becasue of the shipping lanes we have to cross, and the regular fog.
Most electronics over five years don't cary much value because of the changes in design
The rest of the gear depends on two issues:
-- do you need it,
-- what conditon is it in?