I believe we are still far aways from being paid in bitcoin. First, there must be real demand and usage through stores accepting bitcoin as a mean of payment before we can try to receive our salary in bitcoin.
And there is additional paper work to be done for the company if they switch from fiat to btc.
Further i believe that this is quite bad while bitcoin has this high volatility.
Having 5% less the day after the payday, just because of volatility is quite bad. Once prices will be measured in btc instead of fiat, that will work good though.