Nope! I think $200pp/pn for IRHS is great for that resort. We needed a resort that allowed children - so it was a good option for us. Definitely inquire about incentives for booking a group. We get every 21st guest comped (so 1 free guest for every 10 rooms booked) in the form of a refund/credit to us, so that will help us with some of the wedding costs as we expect about 50-60 people.
I looked at a Beaches resort that would have pretty much had zero cost for the actual wedding, but the costs to our guests would have been way, way more and we felt a little uncomfortable about that. (Well, also, we wanted kids to be allowed on the resort but we didn't exactly need Elmo making a guest appearance at the wedding.)
Ohh Iberostar Rose Hall Suites Montego Bay is on my wedding vision board!!!! lol I didn't realize they were less expensive than Sandals! I thought they were over $300 pp/pr?! Sandals is really selling me on the free wedding reception with 10-19 rooms booked. I don't think any of the other resorts are than generous!