Yeah. I'm that kind of nerd. 

Modern grocery store potatoes are bred for shelf life, yield, shape (ideal for commercial processing), ease of machine harvesting, ease of shipping. Basically, things that make them great for maximizing profit in a soulless, capitalist hellscape and not so great for humans. Worst of all,  they're almost all sterile clones! Meaning one bad blight could dramatically disrupt the food system (Irish Potato Famine anyone).

All of this means that the wonderful diversity of color, flavor and nutrition that the potato offers is largely left on the cutting room floor. 

When not in the office or doing fieldwork, I spend my time breeding new, delicious varieties in my garden. Most potatoes are tetraploid, meaning they have four sets of chromosomes, so you only need a couple of fertile plants to start to see amazing diversity. 

Most - if not all - of my varieties are unsuited to commercial exploitation. They either don't keep very long, have strong flavors, undesirable lumpy shapes, or grow too large and long for effective mechanical harvesting. I like it that way. I breed for flavor and interesting shapes and color. I like to create varieties that fit in a home or community garden. Not in some sterile field destined for mechanical refinement.

If this is something that interests you, I cannot reccomend Cultivariable enough. You'll find everything you need to get started.