Cancún and the Riviera Maya dominate the all-inclusive timeshare promotion market. More resort chains operate promotional programs here than anywhere else in the world, which means travelers have real options — but also real risks of choosing a subpar deal from a questionable operator.

Here’s how to find the best deals and avoid the worst ones.

What Makes a Deal “Best”

Price alone doesn’t determine value. A $199 promotional package at a poorly maintained resort with aggressive sales tactics is a worse deal than a $599 package at a 5-star property with a professional, respectful presentation. The best deals balance four factors: