It's funny how people still prefer the units over their money back. I suggest some math and taking a look at the difficulty development over the past months as a comparison.
Its funny how people still want force others to simply give up mining... what do you know how much mining costs other people have?? Have you a time machine so you can be sure that singles dont mine their 9.5BTC refund??
I was told so many times that in June 2011 everyone should simply buy BTC and not mining gear... I bought a rig for 1100.. at that time this amount had got me 50 BTC.. I mined nearly 600 with it.. so i dont listen to anyone who dont know a shit about my running costs and whats my goal in mining...
So you should buy mining equipment that is a generation old, because you have cheap electricity. Makes sense.. or not, Im not trying to put anyone off from mining here. I'd just like to see people making informed decisions based on promises that are kept.