LivingSocial Escapes is featuring Live Aqua Cancun for 4 nights for 2 people at $1,335 (taxes and tips included). This is one of their Oceanfront rooms (generally an upgrade is required, but not here). And it includes 2 swedish massages.
I think you have to be invited to this one, but check it out! If you need an invite, message me (and tell me below you messaged me).
Gosh, I wish I had a little disposable income - I'd totally buy one of these! Maybe I should save up and take BF away as a surprise sometime! Flights from here to Cancun are super cheap, and I could probably just use miles.