I have decided that I need to check out what the rest of the other people in the Korean Food Blogosphere is doing, so I'll be do a bit of browsing around and post the information here.
Here is Seoul Food Yo with a write up on Costco Pizza.
It's still a massive slice and still only costs 2500 won. Oh, and you can get all the sliced onions you need (I know...I wouldn't put onions on it, but many Koreans love it.)
Thanks Seoul Food Yo,