So I'm a bit confused, my apologies ahead of time.
When I attempt to purchase an 8 day in 1 month Swiss Travel Flexi Pass in Euros (RailEurope worldwide site) the price is €662 for 2 adult passengers (with a current promotion and shipping included). On the US version of RailEurope for the same product the cost is $896. Using the current Google conversion 662 Euros is about $739 dollars. That seems like a fairly substantial savings to purchase it in Euros on the "world" site versus the "US" site (even with my credit card's foreign transaction fee).
Am I missing something here? Thanks for the advice.