This thread is a little 'old' so I would caution folks on taking fares quoted here at face value, especially given the recent inflation. I suggest contacting Dante before making any quick conclusions.

From what I understand, a standard car service (not a taxi) is asking for between AR$90 to AR$130 for a service from the city to EZE (including all tolls). The price difference will depend on the type of car.

Luxury Car Services will usually cost between US$60-150 or even more if you contract them through one of the large 5 star hotels.

For those wanting a luxury car service that offers the best value for money.... PM me and I will put you in contact with Fred who owns one of these car service companies.