The biggest possible set are the giant 4 ft tall ones which were $350 each when the Olympics were on. Mukmuk the smallest one was the size of a couple watermelons and was $100. I haven't seen that size in a long time and I'll bet that they were made in much more limited quantities.

The next size down are the large ones and the last time I was at 17hours.ca, they had a full set, but that was several months ago.