Only thing I've ever heard in favor of titanium was the weight reduction. A nice stainless captured guide rod assembly has never been prohibitively heavy for me, so I have continued to use SS guide rods in all my Glocks, rather than paying more for titanium. I never had a bad issue with them. I have never used a titanium, though, so I have no anecdotal experience to note with them.
Madness is like gravity; all it needs is a little push.