What are they worth?

[CW_]

I used to keep rc cars as a teenager and raced them for a while, since then travelling, job, wife, kids etc.... all happened and it got forgotten about. I found my cars recently at my parents house, and now I have more time again I'd like to get back into it.

I currently have an original tamiya hotshot and one the first ever kyosho ultima. Are these worth anything, and roughly how much, and do people collect these "classic" cars. I want to start racing again really and maybe go for a nitro, so although these are fun they will be useless against a modern car and might help to fund a new one.

Thanks

Chris