Ok, Ill try properly this time.
Sebenzas are NOT the ultimate knife. They are really damn good, and they really work well, but there is better out there.
They way I deal with stuff like this is MVP, Minimum Viable Product.
Take a sebenza, $600. Find a knife with similar features for maybe 30% of that price and get that. See how it feels. Then if you decide you still want a sebenza, wait until you can find it for 30% off and buy.
That being said, What is the reason you're looking at a sebenza? Is it quality of fit and finish? Smoothness? the name?
edit: I just realized this post reads like a sleep deprived 12 year old's rantings... Only half of that is true right now, your guess which.