Hi Dave!
Yes, the prices are higher, but the quality is higher too

And I don't enforce my clients to make a subscription or buy credits. You can buy as low as one photo and pay only for that photo...
And as someone who also buys photos from iStockphoto and Dreamstime, I can say that the quality of my photos is significantly higher. Of coarse, this is visible at large prints only. But if you think my prices are high, what do you say about the prices of Corbis, Getty, Alamy etc.
So, your suggestion for improvement is to lower the prices

I may do this, but I am thinking also about raising them to $150 - this was suggested by a client, who buys, as he said: "the same quality" from Alamy at ~$300