To reiterate, being able to see the huge number in your gear screen next to Attack Power is attractive, however increasing STR and INT until they reach their caps at ~330 and 300 respectively give greater damage output per point than Attack Power. Sure, you don't see such an attractively large number in 1 place in your gear window but it is what it is.

Like MW said, this is more of a personal goal to see if you can hit a number like that. Far from being an effective set.