Parasailing was $55 at Paradise Beach last year as well. We didn't do the free drinks and lunch package because neither of us really drink a lot. They let you sit in their chairs for free if you buy lunch at Paradise Beach, so that's what we did. And the lunch was really good.
Actually, getting back to the ship on time is another big factor on the Chichen Itza tour. Because it's such a long bus ride, I'd be nervous booking it with anyone other than the ship. Generally, if something happens, like the bus breaks down, the ship will wait, but if you're on an independent tour, you're on your own to catch up - fly home on your own. On a shorter tour, I'd worry less, but a seven hour excursion doesn't leave much leeway on an 8-hour port stop. Lots of people do it, successfully even, but I'm a self-professed weenie. I hate flying. I love saving money, but I'm not sure this particular tour is place to do so. I'm getting the mucho lecture from my dad the cop, too. So if I do decide on Chichen Itza, it will be through the ship. On the other hand, I can't see paying Carnival $60-70 a person for a jaunt to the beach. That's just silly.
Ok, here's what I notice about your room... You are right in the middle, so the front to back motion will be minimized. You're a little higher on the ship, so there may be some side to side rocking, but since you're not extremely high, the rocking shouldn't be too obnoxious unless we encounter rough seas. I don't know if you have motion sickness - maybe this isn't a big issue for you. This is a smaller ship, so I assume the stabilizers won't be as good as on the larger ships. I could be wrong. The stabilizers on my first cruise on the smaller Rhapsody were better than on my second cruise on the larger Conquest. Your door is in the foyer by the midship elevators. This means you're going to catch some noise, especially around dinner time and show time. You may also catch some noise from late-night party types. Someone in another area has suggested party types are less of a problem with cabins on the higher decks. I don't know if that's true, but perhaps it is. Or maybe you like to stay up late and this won't be a problem for you. Hubby and I are sound sleepers and only wake up if somebody messes with our door. So if there were loud party types on the lower decks on our first cruise, we never knew. Thankfully, your room is located between the galley and the dining room on the deck above you, which means you won't have that kind of noise to bother you - chairs scraping, dishes crashing around, etc. There is an open space directly above your room, which could be a public restroom or it could be a storage space for the galley or something else like that. My guess would be for the latter.
In any case, I see some potential noise issues with your room location, but you're in a really convenient spot for coming and going, I have to say. And depending on your personal sensitivity, the noise issues may not be issues at all.
Rhapsody of the Seas 12/2005
Carnival Conquest 11/2008
Carnival Holiday 10/2009