Guys here like 18-200mm. Feels easier to manage and one lens for all occassion. Like you said 55-200 is just as good for that few odd shots. In fact I use the 55-200 only once or twice. It's mostly 50mm and below for travel.
buy 18-200vr for the convenient and price...unless you want to get 14-24,24-70,70-200 while traveling..
.....the moment is precious and sometimes, its only a split secs..snap it before its gone..