The night session(prime time) isn't that bad. I saw Fed/Wawrinka's match and there's respectable numbers and they were noises. Unlike last year it was so many empty seat and dead silence.
Hopefully attendance will continue to grow over the year.
Tier1(goat): Federer; Tier 1.5: Laver, Sampras, Nadal, Borg;
Tier 2: Lendl, Connors, Rosewall; Tier 2.5: McEnroe, Agassi