Here is an interesting point to consider:
2009 WSOP Rule 77. "Players are entitled to be informed of the pot size in pot-limit games only. Dealers will not count the pot in limit and no-limit games. If requested, dealers may spread the pot so that it can be counted by a player." This is the ONLY place I have seen such a rule. I did not find it in either Robert's Rules of Poker or the TDA rules.
We can discuss whether chips, in the situation at hand, are "in the pot" or not. I believe they are. That said, I also firmly believe that a player has an right to know how much 'action' he/she is facing. Hence, the words "If requested" in this rule, in my opinion.
I have been involved in many events where the dealer routinely stacks and counts the chips of an all-in bet. I am of the opinion that dealers should not do so unless requested. Why? Because it most cases it wastes time and delays the game, especially in Tournaments. Players will wait until the dealer completes the stack and count, even if the amount of the bet is immaterial, hence delaying the action. My experience is that most players do not need to know the exact amount, that if the stack(s) are 'clean', they can figure out the size themselves. Dealers for the most part have other tasks they can be doing such as coloring up the pot, etc., as opposed to counting bet amounts unnecessarily.
I would be interested in hearing from the TDA BOD on this one.