Bests & Worsts Reviews from Amazon

I buy this brand all the time from Market of Choice or Whole Foods and the berries are large, fresh and delicious. I saw the same berries for less money on Amazon so I bought a bag. The ones from Amazon were half the size of the berries and very low quality and gross. They were covered in white spots which based on my research, I suspect were infected with some type of bug or plant disease. I have noticed that when you get something from Amazon, it has a lower quality or it runs out faster (like chap-stick) than that same product and the same brand bought from the store. My theory is that Amazon beats down on these vendors so much to get the lowest price that the only way they can survive is to compensate by selling to amazon a lower quality product. I hope I am wrong but I don't think so!