I added the current amount you will get paid to top 10 list if solution is found. Takes into account the real time value of bitcoin.
http://www.ttdsales.com/64bit/i think(thats only mu thought and decisions), that bitcrack is rather stupid, because you don't know where and what are you doing.. in fact you all time bit a rock...but it's only my thought, what you gone do in range 12873562336973246598716213543 - 48975348027768076943679-84769847698 ?
I think bitcrack is not a tool for all time work, bytheway while you checking 1mlrd addresses you can loose another one with balance
no one is forcing you to solve this challenge with bitcrack, but since the creator of this challenge intentionally made these wallets with increased difficulty, they are still possible to solve... and bitcrack gives you a tool for this, if you have a GPU not too old.
i don't know how you think you will stumple upon a hex value for another wallet not knowing anything about what to search for? the difficulty for a "normal" BTC address outside of this challenge is just on another level, which it also should be, otherwise the value of BTC would be zero.