i had a custom ti frame made back in '95. rode it for years and for thousands of miles. today, with a couple of aluminums, CF's, and vintage steel's, i have found it less attractive. OTOH, i think it's age is probably contributing to that. newer designs and tube shapes and dimensions have probably improved things quite a bit since mine was built.

i have a friend that i see all the time. he has a recent model Pinarello, De Rosa, and Ti Moots. i rarely see him on anything but the Moots. when asked he said something to the effect that "it just rides better". i don't doubt him. be aware though, when buying a Ti bike, you may never have a legitimate reason to buy another bike frame, ever. you'll have to make up a reason.