But I also in my circles everyone takes their own keyboard/mouse/pad/headphones as those are the things it's hard to adjust to - admittedly my priorities could be completely different.
But I think the LAN parties don't really happen often enough to cause much wear. In 10 years at the old place no one used mouse pads and it was never an issue.
https://www.amazon.com/3M-Precise-Repositionable-Adhesive-MP...