Thanks for both your comments. Sean is right - I have a habit of teaching people to take over my job. Maybe I am better at writing than photography! I did have earlier posts about using Google Ads to draw people to our referral links, which was successful in the sense that a lot of people clicked my referral links, but I think I have made about $2 from their images!
On the pricing, I did go backward and forwards in my mind about the price. My original idea was $4.99 but friends persuaded me that $9.99 for all that fantastic information was the minimum I should charge.
As an unknown author, I need to start somewhere to build an audience, and maybe $4.99 is that starting point!
On the hits, a lot of them come from this great site, which is perhaps not a typical audience for a step by step guide. After all, you all know how to do this better than me, because I learned a lot from your posts!