Yeah, maybe a little regretful but not much. I look at it this way. There are plenty of other interesting places in the world that I'd like to go but maynot make them all during my life time. Besides, I absolutely HATE dealing with dishonest people!!! India will be a nightmare for me if I ever go.
BTW, India is the worst place for travellers as far as health concerns. I had at least $1000 shots to prevent diseaes caused by dirty food and water. I didn't even take shots to prevent diseases caused by mosquito etc since I was preparing to go to Bangalore. My arm maynot be long enough to take all the shots needed to go to rural area :)