I have had numerous patients ask me the same questions. I tell them this: It is more common for boys in *my* area to be circ'd. Certain cultures around here do it less often, mostly hispanic. It is purely a personal choice. There are pro's and con's to both. I don't care what anyone says, I have seen little (or big) old men with foreskin infected, or a caregiver forget to pull it back down after cleaning and it became swollen, or (I think this is the term, cant remember) phimosis, where the opening becomes too small to retract it properly thus increasing the risk for infection, etc...
There is also the body image thing to be addressed. I always tell them to consider whether dad or brothers are circ'd. Not that it is a BIG deal, but there would be questions like "why does mine look different than daddy's", or "the boys in the locker room were teasing me" (my ex-husband told me that that was never an issue when he or his friends, circ'd, were in there with someone un-circ'd.
Then there is the fact that IF there is a mistake, the boy will be scarred for life. I have also seen many circ's, and although I had my son circ'd, as a nurse now I'm not sure that I would have another boy of mine circ'd if I had to make that decision.
Also, about the medication. The doc's I work with use lidocaine for all circ's. The last hospital I worked at, there were two that didn't use anesthetic. They said their reasoning was that the procedure takes 5 minutes or less, and the only time there is pain is the small cut, which is usually only about 30 seconds or so. The lidocaine burns, and hurts the baby anyway, and the burning lasts for 30 seconds to a minute.