I stayed at an all-inclusive resort in the Dominican Republic 5 or 6 years ago. I'm pretty sure this was the one:
http://www.holidayhotels.com/hotel.php?HID=20040610130627317814This included meals, booze, snorkeling, private beach. It was a great experience, especially being in the hot sun drinking Mai Tais while everyone back home was shivering in the cold (I went in Jan.). Few notes:
* Swim-up bars are 10 kinds of awesome.
* So are topless beaches
* There was no night-life where I was. Everything shut down at around 10pm, and we were told that if we left the resort we would probably be mugged and/or beaten. There was one really crappy "disco" on-site which played 5 year old one-hit-wonders and was the one place where the drinks were not free.
* The sun sets early in the winter there (maybe all year? I really don't know). That means if you want to swim and sunbathe you really need to get up before noon.
* When the resort is all-inclusive, there really isn't any good reason to stop drinking
* Where we were, breakfast and lunch were all-you-can-eat. Dinner was based on tickets I think? You could eat once at most of the restaurants there.
All I can think of right now. It was a great experience and the all-inclusive aspect of it took away a good deal of the thinking aspect. One price and you know you are not going to spend much more than that (except on trinkets for friends and $2 liters of local rum and maybe a pipe in the shape of a naked lady). Good luck and have fun!