A few times in my life when I worked in the Islands.. the locals I worked with picked a field ripened pineapple. Unbelievably sweet and juicy!! You will never buy a truely ripe pineapple in the store.
I saw a program on TV where the guy said that there is a generation growing up that has no idea what real fruit and vegetables should taste like. What is in the shops may look good.. but has no flavour. Apples and tomatos are good examples.