Not likely, considering the exchange rate of the $ versus the Euro. Sales in France run twice a year in February and August, and called "Les Soldes", so you may or may not find Loubous on sale. Having lived in Paris for 2 years, I never ever saw a pair of price reduced Loubous.
However, Saks and Niemans put them on sale all the time...In fact, I just bought a pair of the silver Altaritas for my wedding in October for $298! You can find a better deal here I think...Paris may be the better place for vintage Loubous which wouldn't be easy to find in the US.
Hope this helps. Bonne Chance.