You know you want to.
But at the same time conquering something that is "too hard" is an important aspect of fun.
No, it is the primary component of frustration, which is never fun. Certain very difficult endeavors in real life are edifying or vindicatory, but it is the rare individual who describes them as entertaining.
"Marriage is like a cage; one sees the birds outside desperate to get in, and those inside desperate to get out." -- Montaigne