The world that orbits around the Phillies is still talking about the call on Friday night, when Greg Dobbs' extra-inning, potential gamewinning bomb against the Red Sox was ruled a foul ball by first base umpire Jim Joyce. The ball was high, so high, that it was higher than the top of the foul pole in rightfield. There has been talk about how long Joyce took to make the call, about how they had to go to replay on a play that close, and how this is a sign of the typical arrogance that baseball umpires have exhibited forever.
My guess is that he didn't go to replay because there is no earthly camera angle that could tell you if the call was right or wrong. Because, you know, there isn't.
The NFL has the same issue with field goals. They do not tend to be controversial plays, and field goals were not reviewable at all until recently. But there was a wacky one a couple of years ago, one that hit the curved base of the upright oddly and bounced back onto the field of play. The officials eventually got it right but, after that, replay was instituted for field goals.