The Over-Possessive Apostrophe

Yes, and they've gone a bit too far with that apostrophe!

I suppose when putting a euro sign in place of an "e" is your idea of creativity, what more could we expect? You can almost hear the cogs turning on this one... "It's more than one euro; isn't there a rule that says something about plurals and apostrophes? Ah sure I'll just stick one in to be on the safe side."