There's a Canadian that lives a few rooms over, and he hates carrying one-dollar bills around; he prefers coins for whatever reason, so he actually goes to the bank and trades all of his ones in for Sacajawea dollar coins.
It's because he's Canadian!
i was talking about Deci, not Deca -- Deci = 1/10, and Deca/Deka = 10.
I'm aware, but it seems to me that you were talking about both:
And nobody here ever used the deca prefix (or deci and hecti). They exist for fun, I think.