Not real sure how you could get ripped-off? They are of no value to you, only to someone that is either looking for parts or a unit to restore. Anything you get is a bonus! Just because they are old, not many around, does not mean they have a bunch of value. I will be the first to say, don't throw them out, many folks are looking for parts, but don't expect to get rich either.
It's all about karma. My guess, going forward you will need help from those on the forums looking for "free" advice on how to fix something. Since you have no need for them, think about paying it forward.
I've known many on the forums that have helped many of folks, they are the ones who "if looking for something" are the first to have people say, "I've got one, I'll send it to you, no charge".
Being that was only your second post to the forums, you still have many a question to go.
Karma my friend, Karma,