Also, I agree that circumcision can be a bad thing sometimes (especially if something were to go wrong

), there doesn't seem to be any universal concrete fact as to how it affects sensitivity. Plus, I don't have to worry about my foreskin tearing during intercourse. Ouch!
Lots of people who experienced both (being circumcised as an adult) testify that it's the same (sometimes better):
Adult Circumcision Stories - Men Circumcised As Adults Tell It As It Is...
^I'm not saying that's necessarily right either, there just doesn't seem to be any reliably accurate info yet.
And I do agree it should be up to the person to decide.