[snapplebobapple]

Yes, storage matters quite a lot because electric grids burn out if supply doesn't equal demand constantly. You need the storage not only for overnight, you need it to store energy when wind and solar are overproducing relative to current demand and you need it to supply that stored energy when wind and solar are underproducing if you expect the grid to get rid of demand resources like coal and especially natural gas.

another unmentioned cost of especially wind, but also to some extent solar is the huge transmission upgrade needed to support wind. It is a huge cost and it is never accounted for in the numbers when people are pushing for wind and solar (because it usually ruins the claim that wind and solar are cheaper over their lifecycle vs natural gas). They are also costs the consumer largely gets stuffed with via billing items outside of energy cost so it's kind of insidiously hidden from the consumer.