I wonder how many pasta machines, breadmakers, juicers, blenders, deep fat fryers, egg boilers, melon ballers, sandwich makers, pastry brushes, cheese boards, cheese knives, crepe makers, electric woks, miniature salad spinners, griddle pans, jam funnels, pie funnels, meat thermometers, filleting knives, egg poachers, cake stands, garlic crushers, martini glasses, tea strainers, bamboo steamers, pizza stones, coffee grinders, milk frothers, piping bags, banana stands, fluted pastry wheels, tagine dishes, conical strainers, rice cookers, steam cookers, pressure cookers, slow cookers, spaetzle makers, cookie presses, gravy strainers, double boilers (bains marie), sukiyaki stoves, ice cream makers, fondue sets, healthy-grills, home smokers, tempura sets, tortilla presses, electric whisks, cherry stoners, sugar thermometers, food processors, stand mixers, mincers, bacon presses, bacon slicers, mouli mills, cake testers, pestle-and-mortars, gratin dishes, apple corers, mango stoners and sets of kebab skewers languish dustily at the back of the nation's cupboards.
In my case I use nearly all the devices I've purchased. The breadmaker came from Mom's house when she was cleaning it out years ago. I haven't used my bamboo steamer mostly because I haven't been able to find it since my move (it and the breadmaker are somewhere in my storage room, along with my yogurt maker...sigh).
Right now I'm not doing much cooking because I can't stand long enough to do anything real and because my dishwasher is broken (which means I have to stand to clean up after I cook). I enjoy cooking and even have a few devices that I use often enough that aren't on this list, such as a pizza maker with a built-in stone (it makes wonderful 12" pizzas and piadines), a stick blender, a separate coffee grinder for spices, and a full-size salad spinner (great for cleaning greens).