Why? Based on what? That's like saying "a state machine has value". That might be true in some contexts, but an arbitrary implementation of a concept is not necessarily valuable. Certainly, the value prospect of the ledger has no relationship to how many cryptotokens the ledger accounts to one's balance (that is to say, buying up cryptotokens is purely speculative because owning more does not make the ledger more useful)
A ledger that me and another entity (such as a friend I owe money to or a retailer I want to buy from) can both agree on to use to accomplish transactions is pretty handy.
Why? Based on what? That's like saying "a state machine has value". That might be true in some contexts, but an arbitrary implementation of a concept is not necessarily valuable. Certainly, the value prospect of the ledger has no relationship to how many cryptotokens the ledger accounts to one's balance (that is to say, buying up cryptotokens is purely speculative because owning more does not make the ledger more useful)