Yeah I don't get this sort of stuff. People come on here asking the value of stuff because it clearly seems like the best place to ask such questions.
A rough valuation is given and an offer is made which seems fair enough.
Then rather than taking someone up on the offer its off to the bin. This response to me is simply a goading technique. It's more of a " well let's see if I can get a higher offer by saying that ill bin it otherwise"
It's almost like the op doesn't believe the valuation or is thinking we are trying to stitch him up?
In all honesty op , the guys have been more than fair here. It is only a ring binder and is not going to be worth a packet.5 quid is better than seeing the bin man cart it off surely???