I went in 1998 and I just paid $5000 with a Canadian company called Marine Expeditions. I shared a room with a woman I didn't know but who spent most of her time with her parents who were beside our room. This included Buenos Aires, Argentina before and after the cruise, aifare from Miami to Buenos Aires, Ushuahia, and an extensxion of the trip to the Iguazu Falls in Argentina and Brazil.
I differ from Millionmiler but I know that is a matter of opinion. We went to land everyday that was possible and sometimes more than once per day in the zodiacs. The scenery for me was breathtaking. It was amazing to find the penguins, seals and birds in this climate and even the humans in Port Lockroy. The penguins are funny to watch. I have traveled a lot and this has been my favorite trip so far.