Price of Taxis in Argentina?

When I took a remise from EZE to downtown BsAs (in April) it was ARS$120. there are several desks immediately before you leave the secure area of arrivals. There is a variance of about ARS$50 so you sometimes have to wait at the cheapest. There is a bus if you can face it after your flight. I don't know anything about cheap hostels but I prebooked the Gran Hotel Argentino for US$50. Food is fairly cheap at ARS$150 per person in some rather good places. Finally, the Subte, the underground railway is really cheap at ARS$1.10 per ride. Overground trains are also very cheap but sadly few and far between.