It's a very good show, I lived in Lausanne in the mid 90's and would always pick up some nice pieces there. Looks like a lot more moderns stuff there now than there used to be. The other good one is in Luzern in the spring.
http://eventful.com/events/internati...01-038728264-1
To your point Ron, quite a few US dealers used attend the show to buy, Mike Morris, B Simpson, among others used to attend regularly, but given how strong the Swiss Franc is against the US$ these days ( it was $1$ being worth 1.7 CHF back then, now only worth about .9 CHF, the last time I looked) I expect that less folks make the trip now.
Vince