It’s not for show for me. It’s necessary. Even our toilet was stained within 1 year of being replaced with weekly heavy cleaning with chloro. Stained from the water. My sister in law is a nutritionist/biologist and works for the military. She’s seen so many varying results of tap water samples all over the world. A filter is more peace of mind, for me at least. As far as bottled water (imported) it’s much different because of ph and minerals, if you care about those things. Expensive but for a reason. Quality. Totally agree though that restaurants WAY OVERCHARGE.