Or you could just keep your gold and were immune to the inflationary effect. Of course paying with gold was difficult, keeping your gold safe was also difficult. Bitcoin however makes paying direct with Bitcoin easy. There is no need to put you Bitcoins in some bank which will issue fiat currency using it as a reserve. Of course you are free to CHOOSE to do so but others are free to not. If these fiat issued currencies end up inflationary well it will make people less likely to choose that option.
You're right, but in that case you would be losing interest which you could potentially earn by depositing your gold in the bank. The same holds true for Bitcoin... Nothing important has actually changed since those times, greed is still here!!!