OK, I agree with you there, just like I said before...
On a stock SR20DE there is no benefit of using higher than "regular" gasoline.
There are performance benefits which may be needed when performing modifications to your engine.
If anyone would like to read why "super/premium/ultra" gasoline has no benefit to your stock engine please read this...
http://theserviceadvisor.com/octane.htm
for further reading, follow the links at the bottom of that page.