How many of your guests are planning to stay outside of the PPR? All of mine are staying at the PPR, I'm hoping anyone who books late gets a room at the PR too. Derek's sis got married in Riviera Maya a few years ago and it was really great for everyone to be together on vacation. I want both of our families to enjoy a vacation together and get to know one another, I would probably switch if most of them weren't going to stay at the PR. But I envisioned my wedding as a week long vacation with family. Is that something you were concerned about?
I don't see how they could just bill you for all the people like that, that's crazy! Maybe you should talk to Kelly. Let her know that you can't afford to pay for everyone's day pass and if that's the case, you'll have to switch resorts.
I switched resorts from Dreams to PPR, it happens. I know I was freakn out when I did it but now i realize it was the best for us.
You have to decide what is important to you and your fi. These decisions are tough, I know!