I'd say give it another month or two. Many are still able to mine profitably if they have 4x cards per rig (dividing the "fixed (power) costs" of motherboard, psu, etc). Once ASIC mining hardware comes online, GPUs will be completely worthless for Bitcoin mining.
But if you see a deal, by all means grab it.
* Disclosure, I am the community manager for a GPU-centric Bitcoin mining pool
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I'd say give it another month or two. Many are still able to mine profitably if they have 4x cards per rig (dividing the "fixed (power) costs" of motherboard, psu, etc). Once ASIC mining hardware comes online, GPUs will be completely worthless for Bitcoin mining.
But if you see a deal, by all means grab it.
* Disclosure, I am the community manager for a GPU-centric Bitcoin mining pool