[HiYaBarbie]

The question is actually based on the false premise that value can be objectively measured/quantified.

In fact, value is purely subjective. In other words, the value of 'Wikipedia consumption' is only what each individual places on it.

For example, someone may find Wikipedia valuable in pursuing his quest for greater knowledge, whereas someone else is completely uninterested in 'consuming' it (and doesn't see Wikipedia as valuable).

In a nutshell, the value of X is its subjectively perceived utility as a means towards an end.

See http://mises.org for more.