I have one TI 83 plus silver edition and one ti 86. I am not sure what to ask for these so I will say 40 shipped for the 83 plus silver and 30 shipped for the 86.
want my advice man? keep these!!!! towards the end of school years, they are worth alot more. if you lose a ti 83 at my high school that they loan you, its 115 dollars. almost triple what you're asking. if you can, save them