Nowadays you have to be very careful with bitcoin. There is a reason Overstock accepts it but doesn't own any as a company. You can take huge losses if you're not careful. As mentioned, even using super powerful a sic chips, your chances of mining a coin any more is almost impossible. Joining a pool is the only chance you have. Most reports now are you won't ever break even on the amount of power it takes to mine a coin. Ofcourse there's always those that get lucky, but as a general rule, you'll spend more to mine the coin than it's actually worth.
I'm 100% in favor of bitcoin, I think decentralizing money is going to be key to a stable financial market. The market is there for it, the other day, Tesla sold a Model S using bitcoin. Overstock made around $130K in sales the first day they started accepting it. It's pretty cool to see this happening.