I use a 5th gen iPad mini for web, email, telephony, ebooks, photos & video capture, but I use older Intel Macs (MBP 2010 & mini 2012) for local media server, s

I use a 5th gen iPad mini for web, email, telephony, ebooks, photos & video capture, but I use older Intel Macs (MBP 2010 & mini 2012) for local media server, storage, photo and video editing, torrent, file manipulation and transcoding, word processing & desktop publishing, pdf generation & editing, VM & emulation, and all the things that iDevices won't easily or gracefully allow or anything I happen to prefer on macOS. Granted, with effort, one can do nearly everything on iDevice, but it isn't always convenient. But upwards of 90% of the things I use Apple technology for is web browsing, email, and watching a movie or tv show, and this incidentally makes my Macs more secure and less needy of administration. I would like to have a new Mac, but I really can't justify it because I no longer use them for web and email, all the old Mac software can still do what I need it to do, although heavy processing takes longer, because the Macs are really in the background, it doesn't slow me down.