Thanks for your responses so far.
I am an instructor/aircraft owner and I wanted to know what people wanted out of the flight. That way I am providing a service.
I feel that it is a great idea so long as folks don't think of it as a chop ride and instructors don't run it as such. I hope the private flying community will embrace it as the useful requirement that it is.
Just an idea - if one were to check out on a new type at the same time that would make it fun, educational and valuable too.