> There's also the whole question of one-time purchases vs. subscriptions. Subscriptions seem like the optimal model for this, so I'm not sure how to accommodate people who just don't like them.

My company is just large enough to require Docker Desktop licensing, and a per-seat continuous drip is too much for us. So, if you're looking to differentiate, having a buy-out option that gives permanent access to at least a range of versions would be big.