so doing some maths, if the avg btc gets to 136$ over 24hr period this will equal the maintenance fee

1Th/s = $1.555/day earning @ current difficulty and btc = $136

We are on track of difficulty decrease but that not going to happen for ~13 days

If I was an AM Hash holder, I would be asking myself whether I think BTC will drop below 136 and be sustained for 10 days(AMHash terms the contract)

Let me know if my maths isn't correct