Im not sure how much they will be on the island. One thing is sure: I have never bought tickets in advance to any party. I've always gotten them cheaper on the island than online prices : -)How much will tickets be in advance on the island? At a guess? We have bought tix in advance before only to find them a lot cheaper in the shops on the island which is frustrating...
Ahhh yes, but that's the beauty of buying from Spotlight!
You get peace of mind, and then if the ticket price happens to come down in the meantime, Spotlight will gladly refund the difference!