It's an interesting option. However, the possibility for major moves upward and downward exist, and that is why many financial institutions and employers stay away from using crypto-currency payments right now. They need to have safety of payments and can't risk huge drops overnight or some kind of hack.
I do think that paying workers in crypto-currency is a good thing overall for individual liberty. But I think that in order to preserve wealth you need a broader view that includes various asset classes such as gold or silver in your physical possession.