Everyone's got that one pen that they bought at 6 p.m. from Dollar Tree because they had to do homework and didn't have a pen. But it's now a year later and you still have that pen and it's the best pen you've ever used.
I'm sure there are plenty of people who have similar stories of buying something that is cheap and mass-produced, and realizing that it's actually pretty handy.
As someone pointed out, soda and beer cans use a “relatively small amount of cheap metal to withstand the pressure of carbonated beverages with a reliable opening mechanism.”
The general consensus seemed to be that the commercial toilets at people's jobs were lower quality, while the ones people had in their homes never left so much as a crumb.
“It's lightweight, strong, splash-resistant, somewhat padded, doesn't break down in heat/cold, scratch resistant, recyclable, biodegradable, and able to be assembled cheaply into any size.”