I'd record new listings as well as the ones still sitting there. A watchlist naturally fills up with homes that haven't sold, which can distort the impression.
From the seller's side, a short list with clear estimates would be easier to discuss than the entire report highlighted in red. I'd also want to know what was already reflected in the asking price.
That would be a useful comparison across any service. A clear handover to the right local professional could be worth more than another listing dashboard.