Way i view it you maintain the car in accordance with use - if you like to drive around as intended not ragging it everywhere then there is no need to be spending exhorbitant amounts on top of the line oils when the recommended fluids are more than ample for your needs.
On the other hand if you take your car on the track, have it modified or went to the further expense of boosting the motor then you will require and benefit the added protection from the higher quality - and subsequently more expensive - lubricants.
As with 99% of things, you gotta pay if you want to play!