I remember first hiking in Vermont and being a little disappointed in the number of ski resorts on the "big" summits. That said, overall I think the state is beautiful.
To add some positive, I was very pleasantly suprised at the beauty of the AT through Massachusetts. I did not expect it to be so nice. The disappointment comes when you pass by what was advertised as the only remaining lake in the state that has not been developed. The lake is beautiful; the disappointment is from knowing "we" did not preserve more. Development doesn't tend to go away.
Progress is not always positive. It's never nature that disappoints me, it's the encroachment (and sometimes the assault) of man on nature that does.
To clarify my earlier comments more on Mount Washington, IMO it's one of the most beatiful, awe-inspiring, moving, peaceful places I've experienced. That said, I can sit with my back to the summit buildings and get lost in the
view and have done so many times in all seasons and during the day and night, but personally, I can still smell asphalt and hear motors and fans humming. It is what it is, and I'll continue to love the experience for as long as I'm able. I see room for improvement in something that is 99.9% positive.
To me, it's something like this - Being on Mount Washington is like savoring a glass of France's finest Bordeaux; it almost doesn't get any better...but as you're just about to take that last sip, you notice the hair.
Maybe someone will start a thread on biggest pleasant suprises in nature?