On Thu, 2 Mar 2017 17:37:57 -0500, Ed Pawlowski wrote:

You have to read the offering as there are many variations.
Sold by third party but shipped by Amazon
Sold by Amazon but shipped by third party
Prime shipping, free 2 days
Not Prime, but free shipping.
No Prime, shipping added

I bought a phone at Staples for $30. Used half gallon of gas to go get
it. Could have had it delivered under Prime in two days for $20.

I never bought anything that said Prime and got charged for shipping.

Nothing is ever truly free
Carefully read the offering.

I have used free ground shipping. My last order got here yesterday
that would have been $70 shipping but I waited a week. Part of the
order came the day before. I don't see a need for Prime because I'm
not in a hurry and save a few dollars.