$122 every 10 days bro. So if your planning on selling something new, make sure its explosive and good otherwise your ROI will suck.
Here's a great way
Get your post count upto 300-400 before putting a sales page up. Wickedfire clients (well most of them) will not trust someone with 25 post count selling something worth $100. Wickedfire has been scammed a lot of times and people here know who to trust and what not.
After putting your sales page up, give out 1-3 review copies from trusted members. Usually look in the enlightenment section and look for a few reviewers or find someone with 1k+ post up so you can build trust instantly.
So all of the above are the real cost of a thread here on Wickedfire.