Based on my college learning days, you are pricing them too high.  Psychologically, $50,000 is a tough sell.  Now if you knocked the price down to $49,999, people believe they are only paying $40,000 instead of that astronomical $50,000 price.  

As a side note, I am now closely reviewing my client list to see if I can come up with 6 clients willing to pay that.  I might have to settle for only 5.