With most of those, each type has a distinct use.

Granny Smith apples are for baking, McIntosh apples are for eating fresh, Red Delicious apples are for decoration, and the rest serve no purpose.

Russet potatoes are for baking, stew, and fries. Purple potatoes are for frying up with steak. The rest serve no purpose.

It's different with bananas. Cavendish is good. Maybe the Gros Michel is good too, but I wouldn't know. The rest are variations of sour, mushy, slimy, and too tiny. It's also a problem of telling when a banana is ripe. It is easy to memorize exactly how a single variety of banana ripens. If there are more varieties, they get mixed up and eaten at the wrong time.