Back from Hawaii trip, and realized that when you travel, a zoom lens is really more convenient. You really don't want to waste your vacation time in changing lens (In my case, I change my lens only in places where dust will not get in easily, like in the car, find a corner of a building, etc.).
I bring 35 ltd, 77 ltd along with the kit lens and 50-200 WR, I use the kid lens most for its wide angle, use 35ltd in the night, 50-200WR for some whale watching shots (not long enough still!), 77mm ltd didn't get to use much.
In the middle of the trip.... I wished I have the 18-135WR.
Lee