My biggest issue with NOT having it done, is that boys are dirty and don't care to be clean, typically at a young age. From my understanding, not being circumcised requires more care to the area to stay fresh and clean. My son hates to be touched more than necessary, when the job requires an extra wipey or two, he's still in diapers. I couldn't imagine trying to hold him down to keep that business clean everyday. JMO.
Other than religious reasons, I don't get not having it done at all.
My best friend opted to not circumcise her son, for the sole reason that her husband was not. I voiced my opinion because she asked for it, that I thought she would regret it later, because of the cleanliness issue. IMO, she was making more work for herself and him.