I was thinking something more like handcrafted artisanal compost, extra row spacing, daily weeding and hand watering? Kobe-beef of onions. What could make an o

I was thinking something more like handcrafted artisanal compost, extra row spacing, daily weeding and hand watering? Kobe-beef of onions. What could make an onion beautiful enough to buy for $100/ea? If you made these, I bet you'd find a market in Japan. Could make a good gift for people who like cooking.