This is a bad decision by your company. You just pissed off a lot of loyal customers.
If there was a pay once, use forever fee, like the 3.5.x, then maybe I would be interested. I wouldn’t if it was absurdly high though. There are other options available for High fidelity playback on the Mac and Windows and you don’t seem to realize that loyal customers who once evangelized for your product are now seriously annoyed.
It seems to me by changing the model so drastically that many will be unhappy. And from what I see in these forums I am not the only one.
You get a down check from me.