User blog comment:Monkey.D.Me/LUFFY"S NEW BOUNTRY/@comment-2163016-20100920020333/@comment-79.130.122.47-20100922213932

It's been said that the "maximum" is 500.000.000. Of course that's not a rule, but we can see that bounties of this level are not easy to get. At least this moment for Luffy who's been missing for 2 years and so his crew. Later in the storyline he'll probably overcome this.