I don't think you got what I was laying down.

If you were to either put in a bunch of money to buy BTC or a rig, dollar for dollar, in somewhere between 3-5 months from now the miner will have more bitcoins. When mining gets unprofitable (or undesirable), the miner also has some equipment to sell off.

It doesn't matter what price point BTC goes to. In fact, the higher the price, the better off the miner is.

we'd need a hash rate of 300Th/s to make $150/BTC not profitable for video cards (5x hash power of now). As the price goes up, so does the mining margin.