Normally we wait till we need an air conditioner due to the heat or your existing one breaking down when you need it. But is it worth looking at the price during the winter? Yes , as we know the world works on supply and demand this means in the summer when there is a high demand for Air Conditioners the price is also high. In the winter the demand for Air Conditioners is very low and the supply is normally high so yes it is worth buying sometimes in the winter.
The only reason to be buying an Air Conditioner in the Winter is Price. Often times there are models left over from the summer that manufactures offer rebates on so as not to store them all winter long. So if your looking for a deal in the winter you really need to ask what is available at the best price. Trying to order one that is not in stock will end up costing more then waiting for the Summer to come