I have been a graphic artist, web developer and multimedia professional for 12 years. This is exactly how it goes - this is exactly how it will ALWAYS go.
My mom is a graphic artist, and when she was doing signs and brochures BY HAND back in the early 80s she would get the same run around.
Without creatives and developers such as myself there would be no Google, no Twitter, no Ebay, no RealJock, no Facebook, no Google Maps, no Mobile Uploads, no iPhone Apps, etc. etc. Yet somehow, somehow the rest of the world thinks that our services, our skills and our creativity should be free or as close to free as possible.