Um... a very robin hood-esque escape but he didn't really do anything bad. To be honest Dra-Hi probably warrants a bounty more since his crew actually killed navy soldiers, and I'm assuming here, escaped. I think it comes down to why the Navy wants him rather than actually escaping the navy because all of us had to do it at one point and caused more damage in the process... *cough*Koske destroyed two battle ships*end cough*

. However, from how it was written it seems as if someone has a personal vendetta for him, or rather the drake pirates. In which case I believe 30 - 50 million is a good number, but I wouldn't put it beyond that. I say 30 to 50 simply for the fact that whom ever placed such a bounty has to know he's a rookie captain, the navy is on his ass, and he has no where to go but the grandline, and with a 50 million bounty
DEAD...or alive nearly ensured to be wiped out; perhaps even having a few of those elite hunters seeking out an easy target. This again is if there's a personal vendetta otherwise I'd say no more than 5 million for escaping. I mean Luffy netted what from escaping? Smoker on his ass... although bad, nothing really to do with his bounty. He didn't kill anyone, let alone beat anyone important enough to gauge his strength in more than just running away. Although I really have no reason why it shouldn't be 10 or 15 or more I just thought 5 kinda matched the love story-ness to the post and 50 is my own sick little mind at work. Anyway there's my two cents.... Uh, can I get my change?