Sure, there are many underpaid studio girls on cam sites, but, in my opinion, they're better off in a studio.
Regardless, if she's a studio girl or work-from-home model, I love spoiling my favorites by buying them gifts and tipping. (I like to believe that.) Fresh content in porn is difficult to find, especially nowadays.
But it definitely can be done and I have had some very good couples cam experiences.And when I find babes like that - who really provide the service I desire - I make sure to remember them and visit them often and tip them.