A500+ Value?

[tokyoracer]

Hi,
I have a guy who has an A500+ for sale in the free ads (East UK) and he offered it to me but I can't really take it as it is a bit of a drive to were I would need to go. Could anyone help me (well him in particular) out for an idea of a ONO price? It works but he only has the leads apparently (power and picture anyway, may have a mouse too).
Thanks and hope to hear some guidelines! :-)

[tokyoracer]

We are talking in the UK and oviously they may be more or less about then in other countries. Id just like to help this guy out so he can make the most of what hes got. Thanks Bazzaq for your replie but isn't entirely clear if one has been sold for £155. Should I call it about £15-£20?