PS3 3.40 (fat 60G) Finding it's worth

I'm new to this. I'm looking for a response to this post in simple a form. I have an original release 60GB backwards compatible PS3. It's version is 3.40 and has been like that since it got the YLOD back when MW2 was big. Its never been "modified" or touched up until last week when I got the repair for the YLOD. There's obviously nothing wrong with it, assuming the guy who recently fixed it would jump at the occasion to make a quick buck. So my question is, what is the worth or value you would associate with this system.

Thank you for your opinion(s).