Hi Jon,
I tolerate Windows 10 because other people in the family use the computer, and Linux can be different until you get used to it. Please understand I'm not advocating staying with Windows 7. Personally I think that's like playing Russian Roulette and adding a bullet each time you cheat the odds, but some people seem comfortable with it. The 10+ year old PC? Well...it is paid for and despite limitations works ok. What is the cost of the 16 TB memory stick drives?
I could tell you were leaning towards Linux and I certainly don't blame you. For those of you who love your MAC, same thing. Going on 40+ years of IT support, I have had to support a LOT of different operating systems as well as computers and associated peripherals. Kudos to keeping your 10 year old PC going strong as I'm right there with you. I can't seem to throw any of my old computers away including.... IBM PC Jr., Apple II se, Amiga 1000, Compaq 286/386/486, original Compaq 286 Portable, Surface Pro/Pro 1/Pro2/Pro3, Dell Inspiron, Dell XPS, a Gigabyte Cube and a MAC Mini. Half of those are currently on and the other half "should" work when I put new CMOS batteries in (I hope). I have DOS6.22, Windows for Workgroups, WinXT, NT4.0, Win7, Win10, Centos7.
We don't know what the cost on those 16TB sticks are just yet but they are going to make the SSD's seem slow. Plus it will still be several years before anything on the home market will be able to make use of those.
Oh, I did lose my one and only Gateway 1000 when a lightning strike blew out the power supply conveniently after the warranty expired. All of my electronics are protected by surge protectors because of that oversight.