RCA 0.9 cu. Ft. Microwave Oven:  $49.97 @ Walmart.ca (RSP:  $79.97)

This was on sale for black Friday.  I've never seen such a cheap microwave before!  I got it shipped to my house, and they didn't even put it in another box.  It seems like it works ok though.

There was a $6 environmental fee so it was around $63 including tax.  Still a decent price, so I'm happy I got it!