All Ti bikes are not created equal. I have no idea what (Ti bike) you are comparing here in terms of bike type (racing, touring, MTB, etc..), design and engineering, manufacturing, etc...FWIW- steel was better for low production craftsmen/artists, carbon fiber was better for aero, lightness, ride quality, fatigue life, ease of production scaling, and design flexibility, and Aluminum took over the low end. Ti didn't have much left. Ti is like Campy, a sub-optimal choice made because of what it is to the buyer. Ti isn't a logical choice, its an emotional one for the buyer.
Also FWIW, in my opinion the Ti bikes I have owned were no better than the Steel bikes I owned, nor decidedly better than the CAAD5 I owned (but were way more expensive). The Ti bikes were better than the early carbon bikes I owned, and not nearly as good as the last two generations of carbon bikes I have owned.