I wouldn't mind having the 3-4 most popular items divided into sub-categories and then have an "everything else" category, like many forums have it set up. However, it ain't keepin' me awake at night either.
That said, it has been suggested more than once, and never happened, so......
Some forums also only allow one bump per day, due to people who feel they are more important than others. Usually these sites do not allow posting in ads except by the seller. I'm kinda "indifferent" on these rules, myself.
But I will continue to happily play the cards we have been dealt on a FREE classifieds that I think we all (should) appreciate having at our disposal..........
