In this day and age, that is an outdated method he's using.
Far better to have a site up with the proofs listed and allow people to buy them.
Of course, the sales will drop quite a bit. When something lands in your mailbox with a bill, a lot of folks will buy them even though they wouldn't have if they had to go through selecting and paying up front.
I haven't really seen him around much lately. And what is too bad about that is he was one of the more consistant ones to show up at a race. There hasn't been anyone else that I am aware of who has been there on such a regular basis.
Let's face it, when something memorable happens, having the picture makes it really sweet.
Case in point, last summer, my husband and I got to take a side by side victory lap at NHMS. And I haven't been able to find even so much a one lousy cell phone pic of it.
I can tell you I wouldn't have complained about getting a $91 bill from Roz for those shots.