Indeed, as far as I remember, they largely discredited the myth that prices increased like that.
As I recall, one of the few groups with a genuine grievance against the Euro were Parisian waiters - it used to be common to leave a 10FF tip, which changed into 1 Euro tip - a loss of something like 35%.
The core of his party are crooked politicians, well-connected scam artists, shady businessmen and other suspicious characters.
Thanks, Polonius - I've been waiting for you to make a particularly slanderous accusation against PO.