I agree that the best scenario would be one carrier simply dropping roaming charges and other carriers eventually following suit, because of market pressure. Ho

I agree that the best scenario would be one carrier simply dropping roaming charges and other carriers eventually following suit, because of market pressure. However, the fact that this hasn't happened makes me suspect that carriers are mutually agreeing not to drop roaming charges since it is such a big cash cow for them. I have no evidence for this, though. (didn't down vote you btw)