I am a big fan of Kris Gethin and really respect his work but his supplement line is nothing special. His products are good, but you are paying a lot of money just for his name behind the brand. You can get the same quality products for a lot cheaper by purchasing competitor products from less marketed companies.
When it really comes down to it, pre-workout drinks are nothing more then a flavoured caffeine drink with some creatine and amino acids thrown in. You could make your own much cheaper by stacking a stand alone creatine supplement with a caffeine pill or cup of black coffee.
I personally take 1 serving of the ancient strength creatine formula from n2bm.com + a cup of black coffee before all my workouts. Extremely affordable and effective.