I only pay 20 EUR a month because a 25 EUR subsidy by my employer. It is a total nobrainer although, I often even use it less, just because I can jump on any local train, tram, bus without worrying about a ticket (particularly as we don't have NFC payment). Actually the 9 EUR will effectively mean a 50% raise for me, so I am not sure if the raise even makes sense economically because people like me just would cancel.