Hehe my PC started on fire a few weeks ago, I was waiting for parts =) New PC up and running and going to be online practicing for the last STCC round now =)
I guess that depends a bit on what you call "pretty empty". Sure, it's never near as full as Race1, but some evening there's a good 10 to 15 people on, which is enough to have some nice racing. But I admit most of the time there's fewer people on. I still think it would help if Race2 stayed on TBO permanently as many people like to race that class but there are few good servers that offer it.
It also seems to me that people who really like TBO generally don't like the GTR/GT2 class that much and vice versa