it's not actually a "Scam" per se. but its what they do to get ppl to sign up for their time shares. They have you come, show you a good time, and they hope that you sign up for their program or whatever they are offering. Even if only 1/4 of the ppl who attend, sign up, they made the money they spent bringing all of you out there.

Real contests and sweeps give you everything 100% free no strings attached at all.

I have won two trips. I took one of them. To chile, they only thing they asked me to do was to take pictures. that's it.

But yeah they are going to hassle you the whole time you're there.