It's an awesome way to play around but it can get expensive quick. I've found a few models with very cool rooms.
With so many decent free sites available, be it for webcam or just plain porn videos, I reckon anyone who is daft enough to pay to view them is just a plain sucker.
You could also say that anyone that takes advantage of the models without showing appreciation is causing good models to leave the industry so that skanks can take their place, if you wanted to.