Thanks for the reference tdw, I had not seen that one before.
I am not averse to stinkpots in the right context, a sailing boat is not much use on the canals here.
I can't find it now, but someone here gave a reference to an Ozzie couple's cruising site. They use a big converted motor cruiser and argue the plus side of cruising under power.
I think the secret is size. To cross an ocean under power needs a lot of fuel capacity, so a big boat. Whereas with sails, a much smaller craft can be used.
Found it: Passagemaker cruising under power in Southeast Asia