Welcome IKON -
I glanced through that discussion and it looks pretty accurate overall. I would say your comments reflect someone who has actually driven the car, while many others do not.
There are two peoeple who seem anti-NSX, one who says he owned one but didn't like it... Hey, not every car is for everyone. He sums it up well when he says "I don't think necessarily that the SC300 is more FUN to drive, but it does do what it is designed to do a lot better than the NSX does... " He is right, the SC300 is much better at what the SC300 was designed for than the NSX. The NSX has a totally different design goal than the SC300. That goal is right for some, wrong for others.
The only real misinformation in that thread is from a guy who seems to have a beef against the NSX for some reason and is intent on disuading you from it with false assertations (i.e. a "design flaw" causing you to spend "$1600 every 6000 miles") I suspect he is referring to the infamous rear tire wear issue, but his numbers are way, way off, and it is not a design "flaw," it is part of the design GOAL - to deliver an all-out GT sports car, not a sporty coupe that gets 30,000 miles to a set of tires. Again, that goal may not meet everyone's needs, and there is certainly nothing wrong with sporty coupes that get 30,000 miles out of a set of tires. They are just a different kind of car.
With factory alignment and tires on an NSX, it is indeed reasonable to expect to replace rear tires roughly every 6000 miles, though I actually got more like 7000 on the street when I used factory tires. Fronts will typically last twice as long as rears. However, the cost right around $400 for a pair of OEM tires - nowhere near $1600.
Some owners like the car as delivered from the factory and to be honest 10 cents a mile in tires ($1200 in tires every 12,000 miles) is fairly reasonable for a really high-performance sports car. For example the C5 has tires which last longer but cost more, again coming to somewhere around 10 cents a mile. Ferrari 355 tires cost twice as much and last even less time those on the NSX.
Those who do want to improve tire life have two options: reduce the aggressive factory alignment settings and/or switch to aftermarket tires. There are always tradeoffs involved when changing alignment or tires, but it sounds like you have a heavily modified car so you probably know all about that already.
