Oh and LMS people, why not set a buy in of at least once? What if you fall once but every round get better and better?
It's not a small money for sure, but like snake said, 10mbtc is not small money either!!
I guess that why it is called the Last Man Standing, I think allowing buy back for every round is already fair enough and that's what helps keep the competition for the long run, it won't be too interesting if just one buyback chance is all we've, this might as well just end after a couple of rounds.
Although, maybe in consequent seasons, even while the buyback fee increases, I would agree and suggest that there should be a maximum number of times each user can actually buyback, that way we'll likely get to reward consistency too.