You gotta be rich!
Insaneta, you gotta be rich or willing to do a second mortgage. Depending on what type of boat your looking for, you can pay anywhere from $20,000 to $35,000. Very expensive, but probably the last boat you'd have to buy in your lifetime.
If your looking for a used one, stay away from the Mercury powered M-2. Not because it's a bad boat by no means, only because there is limited online access to the parts.
But the experience of those I've worked with that have them, LOVE THEM!...