Nothing is maintenance-free.
My kitchen floor is composed of no-wax vinyl tiles, but they still need to be washed regularly. Sometimes the dirt gets so built up that I use a scrub brush to get the tiles really clean. You never realize how dirt can build up until you paint. I thoroughly vacuumed the dining room baseboard a few days before starting to paint. Yet, right before I put the brush to wood, I wiped the baseboard with a clean cloth, and it turned dark and dusty.