This. ^
I bought Roon lifetime a couple years ago, and the digiOne Signature and ultrarendu were purchased because of Roon integration. I subscribe to Tidal family for the 5 accounts, but I personally use my Qobuz sublime+ account the majority of the time and am taking advantage of the purchase discount to buy hi-res albums at greatly reduced prices. I’m also an Amazon Prime member (and stockholder), but won’t drop Tidal/Qobuz without Roon integration.
That said, I realize I’m in the .0000001 percent of users and don’t even register in their target markets. My wife does, she’s an iPhone / Bose / mp3 user like most people. Amazon’s interest in hi-res has nothing to do with music, it’s just another way to tie people into their ecosystems. Much like people can’t leave apple because of iMessage, hi-res could be a value-add service that makes it harder to drop all those other Amazon services like Prime. If they deliver a product like Prime Video, it could wipe out Qobuz and Tidal. If they deliver a product like the Fire Phone, Qobuz and Tidal will be just fine.