I've stopped pre announcing my sales threads and have had the same amount of success with sales (sometimes almost 100% sell through) that I had before. This place has been fantastic to deal with people and I've been much more willing to cut deals than ever before. I receive PMs from people during the threads often with, do you have this book? or what else is coming, i'll buy it before you list it, and I am happy to sell it to people when they inquire.
Pre sale sales are a reality of the comic book world it seems, and I will be honest, repeat customers and friends do get some preferential treatment in that regard.