I’d love my Remarkable or Oasis to be in color. I’ve used my Remarkable almost daily since I’ve received it and Oasis several times a week for years. Color on either or both would be great.
Even in color, eink devices have largely never been portrayed as an ipad replacement given their largely different use cases. It’s sounding to me like you don’t like your devices in favor of either an ipad or paper book, and while that’s okay, it doesn’t mean there’s no market for a color device.