Flip side. A repair might require 4 oz of titanium and a bunch of ecologically cheap labor. Landfilling that frame and getting a "new" one might mean that another 2 pounds of titanium are mined, smelted, formed, cut and welded. That frame did fail at the most stressed part of the frame. Yes, where the most attention should be applied when welding, not "nobody is going to see my stacked dimes here". But if a substantial repair can be made, it is a decent bet that the frame could go on to many more good miles of life. Or that the next failure is at a place of simple fix. And one of the beauties of ti frames is that the fix is so easy to make look good. Brush out with the appropriate emery cloth. Done.