I was fine with paying extra for theme park view as opposed to garden view. But there is no way on Earth I'd pay an extra $2000 to have a 2-minute shorter walk or for the possibility of a slightly better view.
I liked Tahiti because of its close proximity to the Transportation & Ticket Center. It was a short walk to a direrct monorail to Epcot. And after a long day at Animal Kingdom or Disney's Hollywood Studios, it was noce to have the choice of taking whichever bus came first, the one for Contemporary/Poly/Grand Floridian or the one for the TTC. From our room in Tahiti, the walk to the TTC bus stops was about the same as the walk to the Poly bus stop. Yes, it was a 5-minute leisurely walk from our room to Capt. Cook's, but that's OK, it was a pretty walk along the beach.
There are three islands in Seven Seas Lagoon. The largest and most central island "blocks" the view from Hawaii just as much as from Tahiti. From Tahiti, you have a totally unobstructed view of Space Mountain. But the room category "theme park view" guarantees an unobstructed view of Cinderella Castle. And you definitely get that. I cherish my memories and photos of my view from Tahiti, 3rd floor.
I loved my room in Tahiti, 3rd floor, but it can be argued that the best theme park views are from Tuvalu, as there is no grass or beach between your room and the lagoon.
And just to make sure you realize this,
you don't have a room booked in Tahiti. You have a theme park view room. This means you will get a room in Tahiti OR Tuvalu OR Aotearoa.
You can't possibly have booked Tahiti. You may have requested it, but such requests are in no way guaranteed.Zoom lens view from our room of Space Mountain:
http://i44.photobucket.com/albums/f7/CleveRocks/disney4015.jpg
Forward view from our room, normal lens:
http://i44.photobucket.com/albums/f7/CleveRocks/disney2073.jpg
View to the left:
http://i44.photobucket.com/albums/f7/CleveRocks/disney2075.jpg
View to the right:
http://i44.photobucket.com/albums/f7/CleveRocks/disney2079.jpg
View of Wishes (sorry for the fuzzy shot ... no tripod):
http://i44.photobucket.com/albums/f7/CleveRocks/disney1104.jpg
BONUS: Zoom lens shot of Mickey and Minnie after a wedding ceremony on the peninsula:
http://i44.photobucket.com/albums/f7/CleveRocks/disney5165.jpg