Didn't know that, I'll have to check it out

Here's the thing: You live in Canada, where consumer protection laws mean something and the law isn't largely based on which side of a case can burn money the longest on court fees and outlast the other side.

Here in the US, companies doubling the price of something just so they can mark it as on sale for 50% is illegal, but still happens all the time for big sales like Black Friday. Hell, Amazon does it to people with a Prime membership in order to recoup what they spend on the free shipping - double dipping with your subscription fee and increasing the price on things. Airline companies and hotels will increase the price of a flight or room on a specific day based on how often you search it up (if you allow cookies, that's how they track it. You can look up the same page in a private window and get a totally different price for the same flight or hotel room).

Sony just announced a few weeks back that they were going to roll out "dynamic pricing" for PlayStation games.