When mac books needed some pep in marketing, as sales floundered, Jobs also diverged into Titanium in lieu of faster uPs. After that wore off he went to the unwieldy 17" Mac Books.
Often times Titanium is just a marketing ploy. Like titanium cards. Titanium bracelets. Etc.
Often times Titanium is just a marketing ploy. Like titanium cards. Titanium bracelets. Etc.