NSX what routes are you looking at? I have noticed that some of the fares have been more in the $100 range and less in the the $79 range.
There are some new routes out there. SFO-BUR and OAK- LGB. Do any of these fit ypur needs at a lower price point?
Also check out Botique Air (OAK-MCE-LAX $129) and JetSuitX, CCR- BUR $99.
Depending on how much you fly, SurfAir may also be an option.