Having travelled a number of hours to see a mirror recently I'm not sure photos really help
Assuming somebody goes to the effort of updating the for sale site I would like to see:
date advert placed
adverts time expire x days after creation or update
sort by sail number, price, area, wood/grp.
Some error checking on the for sale price to stop the silly prices currently being seen e.g Â£175,000
and finally, more boats for sale in the Eastern area with sail numbers 70XXX that I could easily look at