Wow... I really don't get Canon's pricing, especially at today's exchange rates.
The EF 16-35L F4 is $1550 USD here in Japan
and the EF-S is $460
America will remain the cheapest place to get lenses.
Don't worry that price should come down after the initial pre-orders are fulfilled. The 16-35 is on amazon.jp for ¥149,688 right now with the 10-18 for ¥42,228.
Though I agree that it's total BS that it's frickin made here and it costs more than it does to buy it in the U.S!