@chartz I have just sold a Beogram 4000, it was a good nice clean example, and the buyer happily paid £1800 UK Sterling, so I think anywhere between £1500 and £2500 (for the best mint examples) is about right, well in the UK anyway !
I have also watched the price of 8002 turntables (with MMC2’s) steadily increase over the last ten years, with very good examples now selling for £2000, so I think the market as always is setting the price, after all something is only worth what the buyer is willing to pay !