The US Dollar price to the Euro beginning of this year was 1.37.
Today, the ratio is 1.28 with close to .01 drop today (pretty hefty drop).
With the drop over the past month, either the US price would have to go up or the Frankfurt price would have to go down.
Today, the Frankfurt went down without strength in the US market to prop it up.
In other words, it has been cheaper to buy over in the US market but with the decline of the Euro/US Dollar, it is a dance which market to buy it in.
Kent