Dorokusai:
First of all, Jeff was very kind to let me display the Echo Audio ad. I promote the shop because Kurt Doslu has gone over the top in providing used/vintage gear for me to review from time to time. Hang around in his shop for half an hour and you'll understand why his reputation in the Pacific Northwest is so high.
Second, I only review used gear from him, not new. Those pieces are one-of-a-kind to his shop, which means when they are not there the visibility doesn't exist to the customers that stop by his store. He could very well lose a sale while I'm doing a review. It's a gamble for him, but he is such a quality guy and a true believer in strengthening the audio community that it is worth the risk.