Hi there! Are you interested in the laptop stand?
I am, but I need more information.  How long have you had the stand?  What shape is it in?
It is in excellent condition. I actually got two of them so this one was never used. 
What did you pay for it originally?
$75
I like the stand and would be interested in it but only have $20 cash.  Can I pick it up today with $20 cash please?
I would not be able to let it go that cheap considering what I paid for it originally and it was never used. This stand is solid and will last for many many years so you would get a lot of use out of it.
If I can get $10 more, how would $30 cash be?
I will be willing to do that. You will have to pick it up though.
I can do that.