Knowledge: Amazon sells items at a cheap price but does not offer everything. On the other hand, eBay offers many things and some at the lowest price like George Foreman Grill at $10.00 CAD, when usually sold for $150 CAD.

Conversation:
I was thinking of buying a George Foreman Grill, do you know anything about them?
Yes, it is a grill promoted by a once boxing champion called George Foreman.
Interesting, did he invent the grill himself?
No, it was invented by Michael Boehm in Illinois.
Ah okay. Do you know where I can buy one for cheap?

Response: Sure, George Foreman Grill is usually sold at $150 CAD but you can find one at eBay for $10.00 CAD.