I can't tell you the price of film in Amsterdam, but in Europe all things photographic are substantially more expensive than in the U.S., and not only because of the weak dollar (about 1.23 per euro); e.g., the other day I payed 55 euro ($67.65) for a Nikon HN-12 lens shade that you can get from B&H for $24.95.
Simply because (a) in Europe you pay with euros and today's exchange rate is €1=$1.23, (b) for a particular item, the euro price in Europe is generally higher than the dollar price in the U.S. E.g., a roll of Fuji Velvia 50 is about €7.00, or $8.61.
To some it is as saying, you spent so much getting here to Venice, why are you complaining about the price of 12 or 13 Euro ($15.00- 15 US)for this wonderful cup of Capacheno here in Saint Marks Square. And, why are you complaing about the price of fiflm, it is only 8 Euro and it is not that far a quality it still has a few weeks to go on the use by date, and the box is just dusty and faded from the sun, it is 100 Iso and 24-exposure though. And I can go on and on. I have yet to see any film sometimes at any price, in the off-beaten path places. Yep, you can find stuff in the big cities if you are familiar enough with the cities or have enough time. But, this is not always the case. So as with everything else -- it is always the individuals decision as to what to do. Best thing -- have a good time. There is a lot of good advice out there. Choose carefully.