Wind varies in an order of minutes. What you suggest would require that the price of your power changes every 5 minutes and all you do the whole day is watch the weather forecast and rush to switch your AC on and off.

Can you imagine the losses that a loss of power would cause for a aluminium factory for example? Sorry, but this is a total nonsense.

You don't switch your A/C on and off, it monitors the markets and does it for you.  You don't have any disruption of climate control because it's storing cooling as ice when power is cheap.

Besides, the variations in wind power go down the bigger the area covered by the wind farm is.