I know i have said this on some other threads..
but Making it 50k, makes the gamble non existent..
With 25k it is a gamble - Take a guaranteed 25k, and lose the chance at a possible 75k?. But with this, there is no reason to turn down the 50k, even if you get to the final you can only win the same amount

It seems in place to even the numbers :S since a 4th female will be evicted tonight, and they need a male to be evicted - seems stupid, but this is what channel 5 reduce me to thinking