having split up sale sections is not that good for someone who just wants to see what is for sale, otherwise they have to go through every section, just to see what is for sale!
And you could just search for the thing you want by using the search engine, splitting the for-sale forum up just wastes time, costs money and helps lazyy people who cant be bothered to search
Simple as...
Don't do it Arnie, spend the 100USD on something actually worth it.