Not sure if we can still post MassDrop links, since you need to sign up for the above link to work. BUT, ATH-M50X are for sale for $119 + $20 shipping to Canada, ~$140, which isn't too bad for the these new cans. You can also opt for a limited edition blue & orange colorway for another $20 more.
Main differences between this and the previous model is the removable cable, and improved soundstage (so I hear).
Main differences between this and the previous model is the removable cable, and improved soundstage (so I hear).