Capture One still offers a perpetual license for US$349... it's the option down at the bottom, of course. And they still do discounted upgrade pricing on that, too.
Like all software companies that go down the subscription hole, they do their best to hide it. You literally have to login and click on a bunch of things to get to that point.
And I'm sure this will all change when the new vulture capital fund that snaps it up tries to extract every last microcent of "value" from the brand.
I should also note I jumped ship to DxO as soon as C1 started going down the subscription hole. And frankly, I'm kind of glad they're struggling. I guess they thought they were going to replicate Adobe's "success" with subscriptions without first being a near-monopoly.