It's no secret at all that the NCAA draws more people than the NFL. In fact... it's always been like that, and all over the US. Every single Div. I team has more fans than any NFL team.
Brutal crowds. Chargers couldn't come close to selling out a 27k stadium. Looks good on Dean Spanos.
The last 2-3 seasons of the LA Raiders were pretty brutal for attendance. I remember games around 1993 where the camera would pan over whole sections with 3-5 people in them.
L.A. is not an NFL city.
I actually went to an LA Rams playoff game at the Coliseum way back in December 1978 as part of a sports trip to LA to see the Kings and Lakers at the Fabulous Forum, the Rams, the Rose Bowl game and a UCLA basketball game at Pauley Pavilion.
The Coliseum is massive. At the time they had the one end of the surface area covered with a huge section of several thousand portable endzone seats - that we sat in. It helped make the stadium a bit more intimate. The Roman columns at the one end of the permanent stadium seats were a good 40 yards beyond the back of the portable stands we were in. It's that big.