Isn't that a reason to wait until it's your turn to check your cards? If somebody can't get much info by watching you check your cards, but sure as heck can gain information after you've seen your cards, why check early? That would be dumb.
My primary concern is doing what wins, not what speeds up the game by two seconds. If I have an obvious folding hand, I may have taken an extra two seconds. If I have an obvious betting/raising hand, I haven't taken any extra time by waiting to look when it's my turn because, either way, I'm going to wait the same amount of time, check the players to my left and right, etc. and make my perceived best play. If I have a marginal hand, I probably saved time by looking when it was my turn because I don't have to get rid of any pre-conceived moves I planned on making but that need to be changed because of action taken after I looked at my hand.
Didn't you just say above that you seriously doubted anybody can gain much by watching players check cards? So, how can you count it as a benefit here? You can't have it both ways. I completely agree with you, that watching somebody check their cards doesn't do you much good in most cases, but I guarantee you, people who have already checked their cards are giving tells a lot. In fact, I would say there are people who act almost criminally when they check their hands early by not protecting all players at the table. I can't tell you how many times I was contemplating calling a raise from the button or small blind and looked to my left to see one or two completely disinterested players. By watching them a few hands, you know this means they are folding...and you can make a much more informed decision.
