Low prices support FPGA's long term. Below about $2, no GPU miners are making any money. 3 year ROI is 33% a year. Show me any other investment with that potential. FPGA's are going to dominate mining growth from here on.
GPU mining will always be profitable for those in apartments who don't have to pay for electricity. The GPU is easily resold since it is also used for gaming. An FPGA is not so easy to resell and if Bitcoin tanks you are screwed on your invested.
A 3 year ROI is beyond what any business I have ever worked for is willing to risk. ROI is usually 2 or less for corporate investments.
... Free power from your apartment provider is not a sustainable strategy. You are going to pay a lot more for your apartment, or they are going to kick you out eventually.
FPGA developments move a lot slower than GPU's, my 5830's are worth roughly half of what I bought them for a year ago. Spartan 6 XL150's will be worth 90% of their current value a year from now.
And obviously you've never worked for a property management company. ROI on apartment buildings is rarely less than 10 years. Apple makes tons of technology investments that don't yield results for 10 years. Ridiculous comment is ridiculous. Our world is filled with investments with ROI's less than 50%. The stock market has never yielded a return of 50%.
If you believe Bitcoins are here to stay, FPGA's are the way to go.