There are a lot of miner developers. They just don't sell to you.
Or anyone... Guess they're up there with the mystical unicorns and old bearded folk in the sky.
Last week and a half BTC is down too, by how much? Surprise, surprise 38.2%.
What a 'market'...
Not really sure what sort of point you were making there. There is no correlation between the decrease in BTC revenue and BTC value. The whole reason I was talking about BTC per card was to isolate for new network hashrate and not fluctuations in market value.