Hey folks, I have a spare $40k
I want to know if its worth it to buy a mining rig and if so, what should I buy and how do I run it?
Or is it better just to put the cash into bitcoins and just sit on them for a few years?
I want to try mining just for fun, but am a complete noob.
Someone please enlighten me.
Note, this is cash that I can afford to lose, but obviously I'm looking for a profit

I would buy coins at this point. Hold them and wait until Generation 3 comes out and see how the profitability is. Anything under .07/Kwh is getting into the lower tier of power. I personally pay .02/Kwh but I had to build a data-center to take advantage of it.