Those are gorgeous Merlins. I won't tell you how mine broke in two places with 40K miles on it. But then again that was a 1991 model with straight guage tubing. And I am assured by people in the bike biz that while this isn't very typical - Tom Kellogg of Spectrum Cycles (who has more experience with ti than just about anybody) told me that >5% of high mileage (40-50K+ miles) frames ever fail. And the good news is that until a Ti frame fails- it essentially feels brand new. My 1995 Ibis still does. I doubt that my Ibis will EVER break. And your Merlins probably won't either.