I've been carrying the Ti Salsa for a few weeks now and I love it. The lock is the best I have come across and the cutting ability of the flat ground blade is astounding.
The only thing about having such a stout blade is things like coring an apple is impossible to do neatly.
But it eats boxes, and whittles wood like it was born to do it.
I also much prefer the plain looks of the Ti, as it appears more serious than the versions with the Pepper. If the Aluminium versions had the option of no pepper then I'd buy one in each colour.
Get the Ti, it's worth it.