A renewable dollar is still better spent today on generating capacity, and will be for several more years, most places. Waiting, you get more storage for your money, and you then already have overcapacity to charge it from.
Until the share of renewables approaches enough to destabilize the power grid, building out renewable generating capacity displaces more carbon from entering the atmosphere, and so is a better use of capital.
At the same time, decreasing load factor of nukes and fossil plants, as they become too expensive to win bids, will drive them offline in favor of much cheaper storage methods as fast as that comes online.
The enormous industrial and export value of synthetic hydrogen and ammonia production, after local tankage is full, make them the compelling choice for long-term storage. Initially, those will be burned in gas turbines as they edge out natural gas, both locally and abroad, but improving fuel cells will finally displace turbines.