The advantage of light weight of Titanium is more than
taken away, by the lack of strength of the metal. It is very light,
but very maleable ...it can bend around like putty or bread dough,
almost. Scary stuff....
At least with cro-moly, the steel will wax and wane, bend and come
back easily, reliably and predictably time and again - unless you actually
wack it with a sledgehammer or take a steel saw to it. Otherwise, it won't
bend from common biking usage.