Seriously, there is nothing wrong at all with that party. Lebron is young, wealthy, and single, pretty much any one in his position would have those sorts of parties. Frankly, most such parties would be infinitely worse, like naked women, drugs, alcohol all over the place, fights, etc.
The party, even with the authors slant to make it seem over the top, was pretty tame really. The guy just has a lot of money and can do things most people can't.