I have not noticed it happening very frequently, but it does happen every now and then. Maybe 3 or 4 times over the past couple of months. I only really notice when it is a product that I am interested in. Interestingly enough, the neon sign product I was interested in was replaced on the Market Place 'What's New" page by Narre by Belladzines even though I didn't think she was new (I seem to recall looking at her previously but I could very well be wrong).