Authentik has done the opposite of enshittification. As they’ve gotten more successful, they’ve taken enterprise features and moved them into the community edition. I’ve been extremely happy with Authentik so far and the dev has been nothing short of fantastic every time I’ve seen them interacting with the community.
It’s definitely dried up a fair bit over the last couple of years. In January 2025 I got some recertified 12TB Ironwolfs for $140 each from GoHardDrive, and that was already a fair bit over what they historically had been. Same drives are now $200 on GoHardDrive, and $220 on Amazon. You can just get them new $250, so at that point I barely think it’s worth it to get recertified unless you’re really stretching a budget. I’m sure the businesses are very happy with the demand they got now, but it’s hard to escape the conclusion that LTT and other Youtubers covering these sites really drove up demand and prices.
Also, the smaller drives are a lot harder to find recertified these days since enterprise users will usually go for much larger capacities, so yeah, for 4TB you’ll probably have to go for new. You could also just get a larger drive and only use 4TB of it, assuming this is going into some kind of array. Upgrade the other one at a later date, then just expand your pool!