If it's what you like to do then it's worth it.
But, I'm sure there's other things you can do with your time.
I'm not being sarcastic... I'm just being honest. If you really want to do it then it's not rocket science. Shoot about 20 scenes and hire
www.adultdesign.com to make your site. Learn all you can about promotion from reading the boards. If the content is incredible then you may make some money.