I felt the same way - I was able to relax, not use condoms, and all that.
However - not to be negative, but just telling it like it is - 12 years later I am fairly sure my vasectomy is causing some minor pain. Luckily it is just minor. And I am not 100% sure yet it is from the vasectomy but from what I am reading it sure sounds like it is. At this point I am still glad I did it as I have had 12 years pain free. As long as a) the pain doesn't get too much worse; and b) I can alleviate it somehow... then I'll continue to be happy I got it.