Edit: I'll add that I much prefer purchasing perpetual licenses for software that can work without a cloud component. Opus, Sublime, Mathematica, totally agree that paying for software aligns incentives. But if it is online, it's a SaaS, and they can't very well offer you cloud services forever at a one time cost. (Rsync.net has a deal to prepay ~4 years worth upfront and they'll let you use it for life but it's capped at 1TB)