I'm wondering this because I think this is the case, if BTC is low the alts seem to be low (in profit), I'm wondering that like lets say u had a 200 GH/s miner and as always BTC's difficulty is to high, you go to a much higher profability coin like peercoin, will this 200 Gh/s miner be ALWAYS profitable since theres always new and more profibal coins coming out? If that made any sense.
I think I understand what you are asking, but not sure. Anyways, no. Not ALL mining will ALWAYS be profitable because any new coin involves speculation,and even the existing coins are speculative because it's still an emerging sector. Any decision has a cost, the cost of a decision is measured in terms of the forgone alternatives. When you decide to aim 200gh/s at one coin, it will always be measured against what else it could have mined. "ROI" is often misused here, but it is a lagging indicator, a measure of historical performance in term of present valuation. Since emerging coins are new there is more risk, and difficulty in forecasting demand, which in a decentralized system leads to valuation. Simply said, there are no guarantees in mining new or existing coins, but more risk/reward is implied with newer coins. Profit is the reward for making the best economic decision, but cost comes in many forms (opportunity cost, hidden cost, etc).