Indeed, I had a Kindle Oasis refurb model, and it appears they've now retired it. Best kindle for me, and at $200ish didn't need to be great tech.
I liked the form factor better than paper white, because the margin had space for your hand to not accidentally touch-advance the page, plus the physical page turn buttons.
So if my Oasis dies, I'm left with the $400 scribe that is a price point I care if its good, or $150 paperwhite which I already know I dislike the form factor!
Hence trying Daylight..