Not a great day for journalism.
Firstly the Pinarello in the picture is the same bike as Brad rode in the Olympics (don’t think it is the actual one as the colours are different, although the shop also had that one and had sold it for c.£18k to someone as I recall). So it’s rather like complaining that it’s quite expensive if you want to buy Lewis Hamilton’s Mercedes that won the title last year…..
Secondly, a 531 tubed bike would not have cost £200 in 1985. I know as I bought my first decent frame in 1982 (!!) and it was a Carlton Professional, 531 tubes and should have cost £145 (just the frame), although I got it for £69 (go me) as the shop didn’t know what they were selling. So unless inflation was zero in the intervening years and you could buy a groupset, wheels, bars, saddle etc for £55…..