World Mints At Coinshows In US

I'm new so I really was not sure where to post this, but here goes anyway.

I have been interested in coins for only about 3 months now. So I'm brand new to all of this. I live in the Phila vicinity and learned of the Phila World of Money Show AFTER it took place! I guess I'll have to wait a year for the next one!

Now here's my question; were the mints from different places around the world selling any of their products?

Specifically, Canada, UK? What other countries were represented and were they just "displaying" things or were they seeling their products also?

Was one able to have purchase some of their products?

In other words, could I have purchased some Maple Leafs from the Canada booth or some Britannia's from the UK booth? If so, were there any additional charges/fees involved since they are from other countries?

I'm just anticipating the next show!

And lastly, do these mints come to other large shows on the east coast near Phila? (ie Baltimore, NY etc)

Thanks to all, and I apologize if this is posted on the wrong forum.