you would spend chartering a catamaran
once or twice will be paid back many times by helping you decide what features are important to you, and (more importantly) what you do NOT want in a catamaran. It will teach you to sail, and show your family
how much fun it can be. Charter
with a major company first, like Sun Sail or the Moorings, and go with a Captain
who can help you learn all about it.
You can spend a lot of time reading about sailing on the internet
, but remember that you are reading someone else's opinion, and they may not be as experienced as they sound!
Just go out and try it for yourself!
Don't buy too big a boat. You don't want to have to pay a captain
to help you play with your own toy....