Hrm...How odd...Here in the UK, Chip and PIN has reduced merchant fees to companies offering it (except for Amex and Diners Club, of course), as the liability for fraudulent use shifts from the merchant to the cardholder if the transaction is authorised by PIN.
Chip and PIN in the UK must not be confused with other former legacy systems elsewhere. The German PIN system that evolved from the cheque guarantee cards of the Eurocheque system has been migrated to Maestro, but is completely seperated from MC/Visa transactions to the point that if you're being asked for your credit card PIN anywhere else than a cash machine, it's more likely to be a fraudulent seller than an actual POS transaction.
(Even the common ticket machines, which *have* a PIN pad for Maestro cards, do not ask for the credit card PIN, which means in practical application that you'll be able to purchase a ticket without actually signing anything, as long as you have the physical card. Dealing with the fraudulent chargebacks this method is calling for probably still is cheaper for them than asking for a credit card PIN.)