Bariloche itself is saturated with chocolate shops and ski shops. In summer it attracts people for hiking,kayaking and biking. In the winter the slopes are the main event.
There is a bus from Bariloche you can get to the ski resort. At the bottom of the slopes you can hire ski gear which you can pick up everyday you ski. I went skiing for a couple of days and I think to hire skis and poles for two days was about £80 and then a ski pass for two days was about £80 too. The view from the top of the mountain is beautiful and slopes are vast and white. There are also plenty of bars and cafes dotted about the slopes with lovely fires too. If you are in the season and go skiing, it's well worth it.