I liken that to those automatic soap dispensers. Are they supposed to be hygenic because you don't touch them? Normally soap dispensers are already hygenic because chances are, if you're touching, you're about to wash your hands. All the automatic ones get you is a gobs of soap on the counter that you have to clean up after they went off when you didn't want it to.
I try to live by the rule that if I didn't see the need for something at home, then I don't actually need it. If you only think you need something after you see it in the store, then you don't need it.