A lot of stuff going on in this post...where to start, where not to go?
Titanium or no, if a person loves Spydercos, then it is worth it to get at least one Lum...as Brian says, "functional work of art". Titanium or plain jane Steel. I don't think many sing the praises of titanium as likely many haven't had the pleasure of owning a Ti Lum or any other Titanium Spydie.
As I've said before, personal experience is not statiscally significant. That means that anyone's personal experiences don't mean squat to the overall market, it just sucks for that person. But it is my personal gut feeling that the overall market may be shifting away from liner locks, as many are voicing their disdain for the design. Perhaps Spyderco is attempting to predict future market desires and phase out liner locks, not due to any flaws in that locking system, but rather due to predicted future sales. Considering Spyderco's record for testing and consideration for safety, I don't believe they would have continued to sell the Military for all these years if it was an unsafe locking product. I do believe they plan to change to a different lock in the future, but again I believe it is due to shifting market forces, not safety.
Also if it was an issue with safety, Spyderco wouldn't have recently introduced 4 new knives using that locking system: Spin, Crow, Raven, Volpe. These go along with the military, cricket, spyker, and viele ii,
From what I have read about liner locks, it is a great lock, but only if it is made correctly. Making it correctly can be challenging for some makers.
Peace out Knife Brothers.
P.S. Friends don't let friends spine wack.
Follow the mushin, but pay it no heed.