Let's see:
25-30 dancers
Costumes
Costume designers
Makeup artists
Choreographers
Songwriters
Recording studio to record the song beforehand
The set
Set builders
Lighting specialists
Stevie Wonder
Paying MTV enough to have this song instead of anything anyone at all was ever interested in
I'm sure I'm missing a bunch of things, but that shit adds up.
Also, jump-cut from a dancer fucking up at the one-minute mark. As if that guy needed another reason to not put this disaster on his resum�.
I was babbling about this in another thread, but production costs vary widely. In most situations (especially before the recession) they are highly inflated.
This performance suffers from "live music vocals" - syndrome.
In that Will Smith seems so desperate to project his voice and sing in time with the music, that he ends up sounding like he recently had a cactus shoved up his arse.