On a sailing craft which purchase would be a priority an AutoPilot or
a furling (head sail)? And why?

Most used boats that come with furling rigs dont include an AP that I
have seen. Probably because it is eaiser to sell the AP than remove
the furling and replace with a head stay. But there arent that many
tiller AP for sale either....

If economically I had a choice between a furling or an AP, I would
choose an AP. Considering the useage to be daysails and 2-3 or 4 day
excursions. Its alot more energy and time to steer
than to change sails.

BTW I dont consider a tiller tamer an AP.