The main utility value is as a savings technology and store value. Also as the most secure financial Network in the world.
The rest is just icing on the cake. Otherwise it's just bloat and a security threat..🙂
Discussion
Store of value is only possible when the network has other utility.
Think about it. Why does BTC price go up? Demand for using the network. Transactions efficiency is the foundation that store of value stands on.
Transaction efficiency goes down, demand goes down, price goes down, store of value evaporates