@rollingzeppelin: Not trying to be a dick but from the OP: "I always get into these international conversations between people from Canada and Europe saying how backwards Americans are".
Also he's saying America continued to use Imperial as a way to spite the old world, as they were switching to metric. I'm not sure if that's true, but that is what he seems to be saying. Same reason UK still uses Imperial, we are stubborn.
OK now I get what @corruptedevil is trying to say, thanks. Funny that they use a system invented by the British to spite the British.
Also from the OP:
"How do I know? Because I'm a Canadian born in the late 80s when they instituted the metric system, and I still get angry everytime I get into an argument about the metric system inside of a steakhouse that is serving steak by the Oz.'Metric is the only way to go! Can I have the 16 oz. Prime Rib please?'"
To confirm, I am Canadian. Canadian born AFTER the implementation of using the metric system, my entire education system has drilled to me to pretend that imperial doesn't exist.