People spend thousands to get a bike that's a few ounces lighter. Unless they're pro competitors, it's a waste of money.
I used to work with an elderly engineer who was legally blind, so he couldn't drive, and rode a bike to work. Fortunately he also couldn't see how close he came to getting killed every damn day. He also collected bikes from high wheelers to exotic imports. He told me it's better to ride a 30 lb bike, than a 25 lb bike that forced him to carry a 10 lb lock/chain.
So why not eliminate all that frame weight and go with the wheels?