You are correct, I guess “Permanent Ubuntu Live USB” isn’t really accurate as I tend to distro hop. I picked Purple because I was using Ubuntu at the time, then I came to associate that one with “current linux image” and the others were more situational. This was about the same time I came to realize that for 99% of file transfers it was easier to just scp things across the network rather than dig a USB drive out of the drawer, so pretty soon after I bought them the only thing I used them for was bootable images, and for whatever reason Purple has been the first choice for that task, so I’m pretty sure it has had more writes than the other four put together.