Do a blind taste test with store bought and home grown eggs. You will be able to tell. After years of eating home grown eggs, I nearly spit out store eggs when I had them. The texture and flavor is so bad it was an immediate involuntary response. Home eggs are velvety and rich in flavor. Store eggs tasted like bland rubber. I say the difference is as stark as comparing scrambled store eggs and reconstituted powdered eggs.

My wife claimed there was no difference for a very long time. She had the same experience when we needed to buy store eggs last winter.

Strangely, when going from store eggs to home eggs the difference isn't as pronounced.