I've been scraping several real estate sites for years (not sure why exactly) and have millions of listings in bigquery. Could probably pull specific stats for you if you can give a bit more detail on what you're looking for.
An interesting metric would be the list price vs the actual price. In the past my perception is the sale price was maybe 95% of the list price. Now, the "perception" is the sale price is greater than 100% of the list price.