Random thoughts:
There's a load of reasons been given why not to buy it. Have any of the people advising you against actually ridden one?
The comparison between an RC30 and a velocette or 'average' classic KR1 etc isn't really valid as the RC 30 when new was very far from a regular model and has always been desirable.
Buying any classic in a voltatile economic situation has it's risks.
Advice I was given from a successfull amateur classic dealer when I was young: Only buy stuff you like, don't buy stuff to speculate because if it drops in value or you can't shift it but you love it, it's not the end of the world.
As said, there are significant benefits from an inheritance tax perspective.
The RC30 as a race bike was really before my time, but as a bike lover they have legendary status both as a race and road bike. I often thought it must be overhyped until I recently rode it's little brother, the NC30. I'm not really into sports bikes but the little NC30 is absolutely magical in every way and not highly strung at all. It prompted me to start this thread.....
NC/RC30
As a bike lover and enthusiast of most things mechanical and with an engine, I would absolutely love to experience a nice RC30. I suspect there are plenty of people out there who feel the same. The RC will be very useable and can be enjoyed by most able bodied competent riders, unlike more recent homologation specials. Will this mean it's desirability and appeal will be less likely to diminish???
Taking all the the above into account, who gives a fuck..... if you like it, buy it and enjoy revving the nuts of it. Life is short and they sound fab
I reckon you can guess what I would do.........