[gus_massa]

My guess is that they are using that for the working money of the business, that they keep only for a week or a month. (A 2000% annual inflation is almost 5% daily, so if you have to keep the money for two days it is better to convert to something else even if the conversion has a 10% spread.)

For long term storage, my guess is that they get some real dollars and keep them under the mattress or buy some real state.

[We never had here in Argentina this level of inflation for a so long time, so I have to guess. It is weird, because most of the time I can just say "Been there, done that.", but this is an exception.]