Of course leaving 2 long ass stripes on the ground is important!! It's a MUST! Only thing better is leaving 4 long stripes!!
I got to drive a z with the nismo clutch lsd, its a good unit and yes after installation you are close to 1k invested if you get the unit new and have a skilled driveline shop install the unit into your carrier, but it changes the handling traits of the zcar like night and day, and it can make you a slideshow king! Only thing I like seeing than two long tracks is two long tracks seperated by the shifts Either way you go about getting an LSD diff, youre driving and handling will be changed for the better and I seriously doubt after a few thousand miles of driving it will you feel cheated. 500 for a used r200 may sound high, but put 500 miles on it assuming its in good condition and you will probably forget all about it. A change like this can turn a car you like a little into a car you love. It seems people with a lot of tracktime behind them are biased as to which unit they prefer and I find that to be only natural, and reading their various points of view is an education within itself.