On the LIEquine.com message board the question came up whether horses would prefer to live free or with humans. Thought I'd add my reply here as well:
"My horse is too chicken to live free.
He much prefers to have his rent paid each month, new shoes every 6-8 weeks, meals brought to
his room and to be massaged and ridden as often as possible by a very attentive woman.
That's why my husband calls him my gigolo..."