That's what I had tried, and could not do because bidding had started. From what I can see, ANYTHING added is a "change" to the auction. Once again, I can see why someone who has placed a bid might feel that way. They bid based on the information available at that time. They may know a bit of minutia on that make or model that others are not privy to... On the other hand, if there is an unnoticed or unmentioned problem or flaw, that stance might change on their part. Long and short of it though, is they bid based upon current info. If GB allowed even an add to the description, there could be a huge mess to clean up concerning all bids placed up to that point.