wow $5,200 for a couple w/ airfare, room, and insurance that is a tad bit much for jamaica.....i am not sure of the difference in the quality of the hotels, but we are staying at the Riu tropical bay resort in negril jamaica for 7 days as well, our hotel is AI also, and are rates are based upon double occupancy, we are only paying $3470 (airfare,room,insurance) for both of us ($1735 a person for 7 days)....for 4 days it is $1195 per person(airfare, room,insurance)........
maybe it has something to do with location, we are in chicago and used liberty travel as well, so far our travel agent has been great.....i would definetly check around