Too much time on their hands!

I stumbled on a nice little "tin" that I figured would be
great to repurpose.  Maybe store a selection of OTC medications
in it to keep on-hand, in the car?  It contained some round,
metallic "weights", carefully organized to suggest value:
    <https://i.ebayimg.com/images/g/LvEAAOSwIXlkH5k2/s-l1600.webp>
Chasing down the Logitech branding, it appears these are
used to alter the *weight* (feel) of a mouse:
    <https://www.ebay.com/itm/388072568821>
Sheesh!  Do these guys (PC gamers) have that much time/money
to spare that they are concerned with how *heavy* their
mouse feels?  Prior to the development of this mouse,
were gamers busily *taping* COINS and other masses onto
their mice just to improve their score??  Is the mouse's
mass that critical to its use?
[Shouldn't there also be a huge selection of available
COLORS, shapes, etc.???]
<rolls eyes>
OTOH, it gives me something else to consider in developing a
universal UI!