Never lose that spirit. Buy, run, and maintain what works for you. I also have a machine from 2007 in regular service, though in a secondary role (file server,

Never lose that spirit. Buy, run, and maintain what works for you. I also have a machine from 2007 in regular service, though in a secondary role (file server, etc.), but my daily driver isn't that much newer (2013, still a rust drive). Both machines have generated and continue to generate plenty of productivity and revenue. I find that a little overbuilding in the right areas, like choosing a first-gen quad core in 2007 (often considered overkill on forums at the time), will greatly help the chances of you creating something that will last. It's important not to hoard, but there's tremendous value in finding and maintaining quality. The advantage of old things is that you can point survivorship bias in your favor. Buying new, but very selectively with an eye towards 20-100y duty cycles (and maintaining them, like you're doing!) greatly helps in the same way.