Need help on selling an ancient Atari product.

I got this Atari 5200 Trak-Ball Controller a few years in a garage sale, across the street from where I live. This product was made from the early-mid 1980's, yet its looks like it withstood the test of time.

Its in "Like New" condition. The box on the outside is dusty-looking and worn, but the contents inside are like brand new. Everything's intact. It even has the manual covering the specs., drawings of the insides, etc. and here's everything.

I know is ain't worth hundreds, but at least enough to buy a full priced game, right? I'm planning on selling this thing on Amazon.com, but then there's eBay, but I'm not over eighteen and I don't know anything about online auctions.

Let me get to the point: How much money do you think would people actually pay for this thing?

Here's some more photos if you're all interested:
http://img382.imageshack.us/img382/723/imag0046cu3.jpg
http://img366.imageshack.us/img366/7110/imag0043op7.jpg
http://img366.imageshack.us/img366/8341/imag0048oj6.jpg
http://img382.imageshack.us/img382/543/imag0042zz4.jpg

I already know of the eBay auctions that are circulating right now, but I want to hear it from all of you.

 

I would use eBay as a guide as really it's only worth as much as someone will pay for it.

 

I'd also check the forum rules if I were you, before the angry mob lynch you with their pitchforks ;-)

 

OK thanks for the advise. Could a MOD lock this please?