Simple reasons:

  1. Longevity (monochrome photos will last longer than color)
  2. Simpler (focus on shapes, forms, and tones)
  3. RICOH GR III already makes the best high-contrast JPEG photos (high contrast monochrome). iPhone Pro in Noir also looks fantastic
  4. Simpler is better.

Dark Skies over Tokyo

All black everything:

eric kim street photography hanoi-0003676