I honestly think the s2k is better than all of those cars. It's the weld record holder for most power per cylinders, it's definitely best in its class, and would lap and get better gas milage tab any of the cars you listed or even in the price range.
I can't dispute the fact that the car has great output for being a smaller motor but I'm talking about a car as a whole package. It has already been said that there is road noise and a stiffer ride (great for sport) but an Audi, Nissan, Lexus, or BMW will give you power, space, luxury, looks, and will hold resale value quite well also. So if he is looking for a fun spirited car only, then hey why not buy the S2000, but if he is looking for it all in one car then I'd suggest reviewing some other cars too. Couldn't hurt to test drive a vehicle outside of the Honda name and it's not like you can race around every where you go (although some may disagree :lol
. Hell if he's that dedicated to the Honda/Acura line-up then I'd look at a TSX or TL. They come in manual and have more of a luxury touch with great handling and a really comfortable ride.
And again, I had said it was just my 2 cents worth. Wasn't trying to make anyone dislike their favorite car or what not.
When I sold my Integra I thought it was going to be hard to get into a different style car. Now looking back I can't understand why I didn't upgrade sooner. The space in my car is something I can't put a value on but it has been worth it and I still stomp the hell out of other sports cars and they are very surprised that my car is even a manual in the first place. I get to see some of the most in disbelief faces ever.