Dude, If u want one advice dont come to south america to snowboard...
Its REALLY expensive its actually more expensive then riding in europe or in the USA and here u have old lifts, runs that are badly maintened and pretty much no snow.
It just dont snow enough anywhere here in south america especially in bariloche!
If u dont want to follow my advice at least go to the resorts in the santiago area cuz they are at a higher altitude so they get more snow but even so not even close to the resorts in europe or US.
I live in Brazil and the closest ski resorts for us are in chile and argentina, to be honest with u its more worth it to travel all the way to europe or USA then taking a 3 hour flight to santiago and getting shitty ski resorts that charge u a fortune!