If you can't personally handle a Sebenza before buying, don't pull the trigger. Ever.
I have Kershaw $25 1987 RJ Tactical folder, an RJ Martin design, and I would always and forever choose this over
any Sebenza: Being assisted it opens far more positively, and, once sharpened properly, cuts just as well, with (imo) a far better blade design. Not to mention it has a better more rounded section to its handle, and in addition the opening lever acts as a mini guard (like all flippers)... I also think the handle texture and all black color, plus discrete lettering, combine well to make it look like quite an expensive knife...
Unlike a Sebenza, the handle will never scuff up or take scratches, plus it has superb ergonomics, and the blade opens exactly like an automatic knife(!): It is also longer and pointier at 3 and 11/16". The knife is lighter than a Sebenza, yet the liner lock is steel on steel, so this has lower wear over time, and the discrete clip design is just brilliant. Grind crispness and symmetry was absolutely perfect.
This is by far the best folder I have ever owned, and I have owned some worth in the hundreds, including some high end Spydercos: They all seem clumsy and second-rate now...
The Sebenza is also said to have a weak detent: For that reason alone I would never even consider it...
This is not to say the $25 Kershaw is necessarily the knife for you: I just used it as an example to illustrate how the Sebenza is probably the most over-hyped piece of cutlery in the history of cutting things (besides Busse maybe)... It is absolutely drowning in the stuff, so keep that in mind whenever someone advises such an expensive purchase...
Gaston