HI nicc80! We wanted to get married in St. Lucia also, but found it to be expensive. Are you going through a travel agent? I'm using a TA to book all the rooms, so I'm not sure if they are blocking rooms off for my guest, but i'm also only inviting about 14 people. I wanted to see what the price difference was between booking on SMB website or through my TA and my TA is only a little bit cheaper. So, idk if she is offering a discount to the guests. Also, if our guest book through my TA then my fiance and I get $50 off our bill for each room that is booked. And lastly, for every 5 rooms booked the 6th room is free. I did see that promo on SMB website, so I think that is a SMB promotion. I hope this helps you out! Congrats, and good luck planning your wedding!