I finally caved and bought my first full pack of 10. In my defense, it was the cappuccino maker and oven that did it. I buy the occasional blind box for my Barbie dolls to supplement the official Mattel stuff. Re-ment makes the most realistic and detailed miniatures, mostly of food items. I love the balloons and am trying to get hold of them.
I think the Toy convention must have sparked this wave of nostalgia as I haven't bought a miniature in over a decade. There are some other brands of miniatures, this is my favourite: http://www.re-mentusa.com/. Buy online from eBay, blog shops and websites or at specialty toy stores.