Pump storage is fine for some flat places but here in Michigan we have literally thousands of existing dams with at least 300 having enough head to generate power on par with wind. Dams also can last for centuries with proper maintenance. Plus they generate power 24/7 and actually create property value.
Pumped storage is viable only in extremely mountainous places like California and Oregon.
None of the other states have sufficient vertical relief to make it workable.