I feel I can post my opinions on this kind of thing with a bit of authority, as
1) I've done quite a bit of work in the online adult industry,(web work, not work work..:]..) especially live cam sites, etc. (and it wasn't until this afternoon that I finally ended up with a subscription to AVN Online.)
and 2) I met my girlfriend of a year while working at one of the above companies, and she is a cam girl. (working from home, profit sharing with two high profile sites. She works when she wants, and controls all aspects of her show )
The above article is pretty close to the truth, although I'd be interested in hearing what kind of phone sex ad the guys in question were calling (ie "Young Nubile Virgins" vs "Trashy Chicks That'll Do ANYTHING!"), as calls that perverted are actually a fairly rare occurance. Although I'm still amazed at the percentage of foot fetish guys online.
Typically, yes, the user does want to get off sexually at some point during the call. Many are of the "wham bam thank you maam" type, lasting only a few minutes or so, but some users will stay on for hours, spending hundreds of dollars, just to talk. I think it's the ability to not only talk to someone who is understanding and won't demean or ridicule them, but to talk to someone very attractive(or whatever the draw of the particular girl) who is understanding and won't demean or ridicule them.
Personally, I'd rather my girlfriend be online as opposed to a phone sex operator like the girl in the story for a couple of reasons. First, the net is less intimate than a phone call. Personal, yes. Intimate, no. And second, what was the name of that movie where the guy's wife was a phone sex operator, and he would listen as she did her thing all day talking trash into the phone? Whenever they would have sex, he couldn't get her to talk dirty to him at all, because she'd just spent all day doing just that. It was driving him crazy. That would suck. :]
Vegas isn't a liberal stronghold. It's the place where the rich and powerful gamble away their company's pension fund and strangle call girls in their hotel rooms. - Psycho Dave