That is one benefit of Uber (and trans-national apps like MyTaxi or Taxi.eu) compared to local taxis. My guess is you're being ripped off because you're tourists.

I remember that as a kid, my mother and grandmother would teach me to never take a taxi that's parking in front of the train station, because those are the scammers that prey on tourists. Instead one should order a taxi from a known company using a phone.