"price is firm" $50 $20

Saying "I know what I've got" usually means they did a quick search on eBay and copy/pasted the highest price but ignored the fact that item has been listed and not sold for 10 years because it's overpriced.

I always want to send them something like "What a big boy that you know what you got! And when you make the sale you can add the money to your piggy bank!"

That's truly all that's missing from this masterpiece.