I know of only one person that quit Toprol, and he promptly suffered a heart attack
, which of course, may or may not have been related. I don't remember what the reason was for going off it, but I think it was a side effect or something like that.
I think you have a good point about the differing treatment regimen as related to different areas of the country. Florida, of course, is an excellent example because of the "retirement haven" thing.