I have considered the idea of stockpiling NSXs. Honestly, there are great deals to be had out there right now, especially on cars in the 40k - 50k mile range.
Not a bad idea...there are some Porsche dealers out there that specialize in the 993 series 911's (last of the aircooled beauties) that are doing the same thing. Its widely known that if you are looking for a nice condition 993 then you go to these dealers...
Could be an idea for the NSX. I think Source Automotive on here is doing a good job of finding and re-selling NSX's.