[Omnimorph]

In my experience people are usually leaving a price off in the hope they'll get more than what a PC would return on an item.

Personally, if i'm selling a higher priced item i'll leave a price off, someone will enquire, and i'll say "around abouts 12k" or w/e. That leaves them open to negotiate.

When you're selling something and you put a price on it, you're more likely to be undercut by someone else if they're selling the same item. No price on means someone has to ask you, and you can come to an agreement from there.

In short, it really doesn't matter if i put it on or leave it off. I'll pay what i think is fair for an item, if it's a commonly sold item, i might be happier to wait to get a lower price, if it's an item i urgently need, i'll offer what it's worth, if they want more i'll consider paying it.