Price mistakes that actually came?

I get so excited when I spot a price mistake!

I don't even look at what I'm ordering.. for example, if I see something that is usually $100.. and is down to $30.. I just buy it whatever it is.

When it actually comes in the mail.. it makes me wonder.. was it really a price mistake? and the excitement disappears.

These are two recent purchases I got this way.

Recent Example #1 - Queens - DVD Box Set - Retail was around $120, it was at Overstock for $30.. I jumped on them.
Now... I don't even know who Queens are. I scratched my head on what to do with these.

Recent Example #2, this KitchenAid 12Qt. stock pot + heart mogu pillow. It was normally $150, but it was priced at $30. Ordered right away and actually arrived.

This stew pot is way too big for me and I never do cooking for more than... 2 people? The heart pillow is a little girly but very soft.

I need to learn to hold back myself when I spot hot deals.

I guess even if the price is low.. if I don't need it.. I overpayed.

But still if this happens again, I'll jump on it for sure