I have both kinds and I like them each for their different qualities. Button quail are beautiful and fun to watch, just not for cuddling. I have a silver male who's breathtaking (imo) because he has gorgeous pinkish shading on his belly, which looks like a cloud at sunset. The males inflate their air sacs and make a peculiar whooshing sound (their "crow") in the evenings. My Japanese are friendly, fun, make a wide variety of sounds, and I like their colouring which makes them look like they're covered in sharp spines. The bonus is that I can feed both kinds the same things and their care is almost the same. Also, I don't have to buy chicken eggs at the grocery store anymore.