We are getting married at the Moon Palace in April of 2013! I've done a lot of research about the Moon Palace so hopefully I can help a bit. First, let me start by saying we've stayed at the Beach Palace in Cancun and at the Vallarta Palace in Puerto Vallarta (actually got engaged there!) and we LOVE LOVE LOVE the Palace Resorts! However, based on the comments on here and from travel agents I've talked to, booking a wedding through them can be challenging until you actually arrive the week of your wedding. I would strongly recommend working with a travel agent to help you negotiate with the Moon Palace. I don't belive they have technically released pricing information for 2013, however the three different travel agents I've talked to got the Moon Palace to commit to 2012 pricing, which is good because historically there is always a price increase from year to year. I'm working with two travel agents right now to see who can get the best deal. Right now it's about $360/couple/night. I'm trying to get them to promise the 1500 resort credit promotion because it is AWESOME (one of the best perks of the Palace Resorts and I think a def. justification to guests for paying a bit more than some other all-inclusives) but is set to expire April of this year. Am also trying to negotiate "kids stay free" and airport transfers...I tend to be pretty aggressive with negotiating if you haven't noticed!
Anyways, I hope this helps! Let me know if you have any other questions and I'll tell you what I know. I'm pretty much on this website every day, but you can always private message me. Congrats!!!