You guys got me deciding to buy several spare chain blades instead of
getting a roll of chain and tossing out dull pieces.

My 16" bar uses a chain the Craftsman sells for $20. I found two other
online places that sell it for $30.

Is a 16" chain a 16" chain a 16" chain? Or are they make/model specific?

I'd think I could beat the Sears price, but Googled and DogPiled it and
couldn't. Online sources of inexpensive chain blades welcome.