I'm not the wagering type of person, but I think that "wagering 4k BTC" doesn't equal to "owning 4k BTC to gamble with".
I think you can own 1 BTC and wager it 4k times - let's assume here you don't win nor lose - and it would correspond to having wagered 4k BTC.
Wagering 4k times is a very difficult job but I think wagering 400 times is still achievable.
Even I am not a person who can wager more than 50 times. I more of a 'all in' type of person.
I gamble with what I have and lose and then wait for another deposit
