Help! What are these rare items worth?

[Help! What are these rare items worth?]

Sealed in Box Joystick Interface from Electra Concepts

 

They have all been tested and are working fine. They are all in very good condition cosmetically as well. Thank you for all your help!

 

 

You should do pretty good with those. But, forgive me for stating this, but if it's sealed, how could it be tested. I just notice these things.

 

 

Good point :-) That's the only one that hasn't been tested, since it is sealed.

 

By the way, thanks to everybody else for your feedback, it helped a lot. I'm going to stick with selling on eBay, but I think I have a much better idea of what to expect now.

[Help! What are these rare items worth?]

I have a bunch of Atari 5200 items that I will be selling on eBay next week, and I have no idea what they are worth, and therefore what I should start the bidding at. How much would you all say that the following are worth:

 

Bounty Bob Strikes Back

Meteorites

Diagnostic Cart

Cram Cart

Sealed in Box Joystick Interface from Electra Concepts

 

They have all been tested and are working fine. They are all in very good condition cosmetically as well. Thank you for all your help!