Variety of reasons things can be different than a simple exchange rate on a given day, which by the way 1100 Euros is about 1250 USD.
EU sales tax is usually called VAT. Strictly speaking VAT is not a sales tax in the same sense of the US one but either way it is 20% in France. 20% sales tax is insanely high for anywhere in the US --
http://www.salestaxinstitute.com/resources/rates (they are a combination of state's base rate and any local ones a given town/county might levy, either way you will be doing well to break 10%).
EU disposal of electronic goods is a thing.
http://ec.europa.eu/environment/waste/weee/index_en.htm has a bit more but the short version is in the EU companies selling goods are made to accept their old goods back for disposal. This costs more than the US approach which is often little more than dig a big hole and chuck it in.
France in particular has a requirement for things with headphone sockets (too many kids with hearing damage). It could be that it is a separate model for France and thus requires extra effort, though probably not to the tune of $100
If it has a 3g socket then I believe France mandates it be unlocked (don't quote me on that, if not France then one of the neighbouring countries and people would then travel for it). If they are not getting a kickback for locking it to a provider...
On top of all that people do pay higher prices in Europe for whatever reason. If people will pay it then it is worth considering charging more. I do not know what the French colloquialism is offhand but the UK one is rip off Britain and I have heard similar ones in most EU countries I go in.