After reading hundreds of cruising logs, in-, near- and offshore, on
the net over the past several months, I have been struck by how often
and for how long cruising sailors report they are under engine power.
From what I have read, it would appear that sailors are under engine
power for something in the 80-90% range.

Why, then, have a sailboat? For the little time under sail and quiet?
Or is it a need to prove hardiness to oneself and to others?