Isn't pumped water storage the same thing but much easier to manage? Like think of a 10 ton weight suspended from cables 100m high vs a $300 above ground pool o

Isn't pumped water storage the same thing but much easier to manage? Like think of a 10 ton weight suspended from cables 100m high vs a $300 above ground pool on a 300 foot hill. Isn't pumped water storage going to be hundreds of times cheaper for amount of energy stored? I didn't do the math but this reeks scam to me