Like a lot of main stream cars from the past 30 years there is usually just a load of shite about.
However I can see how a mint white and blue cracking good RS Turbo S1 would be attractive. An almost 40 year old Capri RS3200 - yes please. A flat nose RS2000 with fishnets from 1980 in red with chocolate - yes please. How about a mint 1986/7 Pug 205 1.9 GTI or a Renault 5 Turbo of same age.... All great fun and not the lardy, over stuffed, electronically advanced and anesthetized shite of todays equivalents that are not from Hethel, an MX5 or similar. Horses for courses I guess and probably why I love my VX. It's an age thing....
There is a lot of shite about and still strong money, especially sapphire cossies. I remember about 5-10 years ago some examples selling for around the £4k-5k mark..the dogs you wouldnt touch. These are now £13k plus, hardly suprising when mint sapphires are £25k+ and escort cossies £35k+. Even a good YB engine will cost you circa £5k.
The appreciation in value has been astronomic over the last 3-4 years.
I guess this is due to a few reasons, people who couldn't afford them when (or afford to insure them) in their 20's, now having the disposable income to buy (and being of an insurance friendly age), long-standing low interest rates so modern classics getting a better return than bank accounts, people seeing classics cars as a usable pension, and an increasing demand pushing prices up.