We still run loads of single girl websites, probably close to 60, and all REAL girls
It is nowhere near what it was "back in the day". All those 60 sites together don't make what Carol made on her own. In fact, at this point, all the sites almost equal what Carol makes on her own right now.
Solo is done. You need Networks to keep the guys around. Surfers are easily bored these days, and "loyalty" is no more.