It's a bit of extra work to update the original post with what's sold and what's still available, but it's a BIG help to anyone who's reading your ad. It might also help you keep things organized for your own benefit. I highly encourage it. Also, when you remove something, please leave the pictures and description etc in place, but simply strike through them and add SOLD afterwards; it's a big benefit to future buyers and sellers to be able to look through past sales and see what was sold, what it looked like, and how much it was listed for. Something like this:
Amazing find, rare chips, perfect breakdown for a tournament, $500 takes the whole set -
SOLD to @Josh Kifer