Is the Honda NSX a good investment?

The thesis

The original NSX defined the analogue supercar genre—aluminium monocoque, titanium rods, 8,000rpm VTEC V6, and Ayrton Senna's input. Manual NA1 examples (1991–1997) are the purest iteration before the NA2's 3.2L and later facelift. UK prices for manual cars now sit £60k–£110k. The NSX was the last naturally-aspirated, hydraulically-steered Japanese supercar, but prices have already run hard; a 1993 manual advertised at £137k signals late-cycle froth.