Hi Macker, It's their super busy season right now, so it'll likely be tricky to get an answer. They're having up to 4 weddings a day! So be patient. You can also try calling directly, that might get a faster response. I know everyone says this, and you never believe it before your wedding - but any questions etc. you have are answered in the hour or two meeting when you get to the resort. You can change your mind and pick whatever you want then. Yes, the package includes 15, then everyone extra is $66. We had 33, so we paid for 18 extra people. You are paying essentially to have the reception on the beach. Thats the difference between this package and the next one down. I think you also get "nicer" choices for food and such. We added on the extra people (18), an extra hour, a cocktail hour, 3 centrepieces, a bigger cake, the huppah with flowers (I think that was it) and our total was about 5700. Honestly, for a wedding - especially one so awesome, it was worth every penny. Our site at Palmerus beach was fully decorated with lights. I'm guessing it only costs more if you want extra lights? That is probably something you can decide when you have your meeting with the coordinator at the resort. See what is included already.
They don't provide place card holders. They will set them up for free though. Just remember it can be windy, so they need to hold up!