Crayola,
I believe a little too much is made of the blade handle junction. Chris Reeves makes a good knife. But, there is little information that there is any tendency for well made hollow handled knives to fall apart at the blade handle junction. If any part is subject to fatigue it would probably be the blade itself at the stress riser created by the sawteeth along the spine.
We have discussed this on the forums before. Aside from a few ultra cheap survival knives from Tiwan, China, Pakistan etc., no one had witnessed a blade-handle joint failure. I agree that that the joint is a potential point of weakness. But, when it is done right, the joint will not be the weakest link in the knife, and to focus on this while neglecting other features such as weight, balance, utility of design, indexing, heat treatment, and sheath safety is a mistake.
Bayonets are subject to more stress than most knives, particularly during practice, and the Swedish model 1896 bayonet featured a blade attached to a separate hollow handle. If it worked there it can certainly work on a knife.
Good examples of hollow handled knives include Chris Reeves, Randall Knives (models 17 and 18), Rob Parrish (Combat Survival), Webster Wood knives, Colin Cox (once worked at RMKs - went on to make similar knives), Dawson made a few good ones, Jack Crain (Life Support series), and Jimmy Lile (Rambo knives).
n2s