The yogurt maker (yaourtière in French) is often used to illustrate the concept of an appliance that seemed like a good idea at the time of purchase (back in the seventies), but ends up collecting dust in the dark depths of a kitchen cabinet. It strikes me as terribly unfair a way to disparage a perfectly respectable peace of household equipment.
I grew up on the homemade yogurts my mother made using her yaourtière, so much so that she is probably the only individual on the planet who actually had to buy a second one when the first one got so much use it broke down. Homemade yogurts have a taste and texture that make them absolutely perfect for breakfast in my opinion, eaten as is or poured on cereal. I had one every morning for as long as I lived with my parents but had to go without for the two years in the Silicon Valley (where I drank Kefir -fermented milk-, an acceptable substitute).