for investment pick good coins and buy them , trade and hold forget mining right now.

for mining... half asic scrypt half gpu..... some coins you can not mine with asics, this will continue since i think it is easier to keep jumping algos and adding new N factors than it is to develop asics. I could be wrong but personally they i think they will keep gpu miners in the game.

My rigs are mostly off now no point at all mining at a loss. Just take the electricity money and buy coins directly.