Gibson are taking the piss with their new prices these days, and its pushing the second hand stuff up too. A standard Gibson Les Paul will run you the same as a Custom Shop Fender at the moment.
Tokai, Orville, Greco, and Epiphone are you best bet for value for a Les Paul type, but even then the good ones will run you over €500.
They've always veered a bit pricier though haven't they? I never thought I'd own a Gibson till I bought yours