Albergue Mochilero Hostel
El Calafate, Arentina
120 Argentinian Pesos (approx $31)/night
Aside from the fact that the receptionist was a SERIOUS bitch, they gave away our reservation which we had made (in person) days in advance, and the other patrons were fantastically loud and obnoxious, we enjoyed our stay here.
Pretty much as generic as they come, but clean and WiFi enabled with a comfy bed and private bathroom. It's also always an extra treat when we have additional beds to sprawl all of our stuff out on.