If you don't mind a 1600x900 IPS panel, I found a Dell P2014H for just under $200 CAD. Not sure if it supports VESA, but i'm just going to assume it doesn't.
Cheapest place I found was on Amazon: https://www.amazon.ca/Dell-Computer-P2014H-20-Inch-LED-Lit/dp/B00FUTDRWY?ie=UTF8&tag=pcp0f-20
Edit: fixed link