I have a collection of over 80 miniature teasets. My cousin gave me one when I was 12 for my birthday present, and that started it... my mom bought me a few, and soon everyone I knew had to "contribute" to my collection. They take up 3 6-foot-high shelving units with glass door fronts, to keep the dust off, and they are currently wedged in there pretty tightly. I had to ask people to stop buying them because I have nowhere to put any more!
The largest mini-set is child-sized. The smallest is meant for a dollhouse and is literally so tiny that you need tweezers to pick up the cups - I'm not kidding! I'm afraid to sneeze around it!
I do have one full-sized real teaset. The count of 80 is mini teasets only, but I also have a couple of antique wine decanter sets, a miniature stemware set, a mini soup tureen and set, and a mini lemonade set.