Decoration: Is It Art?

This summer, between plein air sessions and in the comfort of my studio, I painted these two large panels. They are  based on a plein air acrylic I did in Maine, plus reference photos I took there. Today my partner Maikel glued them to the cabinet fronts on our living room wall unit. Their purpose is frankly practical and decorative-- they are now part of the furniture, covering a TV and its related junk that we'd rather not stare at when it's not being used.
For several years we've been covering our TV with a painting, even if the original purpose of those paintings wasn't camouflage. And I did paint the cabinet doors on our boat, disguising a jumble of cans and plastic cups. Not exactly with a tole painting, but something I saw as a little less than art.
So it was liberating to read a few nights ago about Monet's water lilies paintings, which he referred to as decorations and were conceived to be permanently attached to walls. I need to get over myself about thinking "decoration" is any less worthy than any other kind of painting. Is there anything wrong with art being useful?

Bunker Cove, Maine. Diptych, oil on gessoboard, 20" x 32" each.