What I don't understand is why anybody would think of India as a traveler's paradise? Because everything is cheap for a western person? Does one need a huge amount of ignorance to enjoy traveling among hordes of poor people? (Real question - I've never done such a thing)
I too have a very low opinion of India like you do. I have often said food and yoga are the only great things to historically come out of India and a few good mathematicians of course. So food alone is one reason to visit!
The others here have mentioned about the geographical beauty of India. Skiing in the Himalayas alone is worth it.
I was born in India but moved away at a very young age. I did go back from time to time. Like you, I too think Indian culture is old and full of ignorance. It is biting them in the ass. My comment history will attest to that. But then again, what developed nation wasn't? At some point the church prevailed in Germania too. But this is changing, albeit at a slow pace. Why? Indian values have been traditionally been placed on peace/ cowardice ;). They never had a deranged lunatic who propelled them into the scientific age with a war based economy killing half of his own population. They never had genetic cleansing of population. So any change into the scientific, modern age is going to happen at a very slow pace. Unless of course they go to war with China and their existence is threatened. I guess you can see what I'm getting at. Spirituality. There's a fundamental divide in east-west spirituality and its a lot more deeper than you think. It's enlightening to visit these places. Please do read autobiography of a yogi or anything by vivekananda if you go on such a trip. It's not just mindless, non-scientific drivel. You'll see a fundamental difference from Nietzsche.
Next, history. India is home to the oldest known civilization in the world, the indus valley civilization. So you can imagine how rich the history is. And needless to say, I'd imagine you know the importance of visting historical sites, especially say Auschwitz in your country. There is some stuff we never want to repeat. Oh and I couldn't help but type this, you can take a train in India without fear! I kid, I kid.