Your Boxster will probably depreciate quite savagely the longer you hang on to it.
I guess you've had a good look at the CX cars, less luggage space than the boxster but surely as easy to get in to, and still a Morgan.....
Interestingly, there are now Plus Four's below the price of standard +4's, not even ARP4's or babydoll's....!🤷🏻♂️