I believe the mining for a massive profit is a thing of the past. Difficulty rises too quickly to expect any profit at all. The sad thing is most buyers of asics will not realise that until they have bought one and mined with it.
The irony is a lot of the people contributing to the massive difficulty, making it unprofitable, are never even going to realize a profit themselves because they will give up and likely sell their mined coins at an overall loss.... then resell the used equipment to some new bagholder...
This is almost like 20 people cramming onto an elevator that can only support 10 people.