I agree with the sentiments above of not putting a price or pictures up; the threads should be deleted if there are no pictures or prices in the advert.
I preferred the old system where replies were allowed to be made and you could update the thread far more accurately and as up to date as you could.
This would avoid PM'ing 6 days later assuming the item was still for sale as the thread hasn't been updated only to find it's been sold on the 1st day.
The amount of replies and kind of replies should be policed with regard to needless bumping or spamming.
Just my tuppence worth.