League of Legends

[Kaden]

If there are not at least 8-10 wards inside of the total team's inventory at all times, we are making a mistake.

That's pretty excessive. 3-4 wards at a time is still a lot of coverage and is incredibly reasonable. If you keep Baron, Dragon, and two points into the river covered throughout the entire game, you've done a good job warding.

EDIT: My point isn't "omg Dariden buys too many ward." It's that good coverage is pretty easy to get. If you have four relatively central points warded, then off-map movement becomes pretty predictable if not out-right obvious.

EDIT2: I'll also say that if people are using traps/etc. responsibly through the whole game, they're allowed to not buy wards. Not planting anything until a team-fight, though, is not being responsible.