A small amount of inflation (single digits per year), is a feature, not a bug. It prevents the boom-bust of people hoarding currency, and forces the currency itself to be used efficiently.

If the gov't can maintain a bond rate below that of the inflation rate, it also acts as a small tax to help fund the gov't - which also isn't a bad thing.

Not that any of this matters at the moment, because the real limitation of cryptocurrencies is the tiny transaction throughput.