Why screw with a 1300MHz Duron when you can get a faster Athlon XP for $6 more?
It just came out, that's why. Wait a week and see the 1.3GHz Duron fall to the point where it'll be $20-30 cheaper than the 1.33GHz AXP. Remember, anyone even considering a Duron is on a hella cheap budget, where the $19 difference between a $75 1.2GHz Duron and a $94 1.2GHz T-bird @ Newegg is enough reason to not get the T-bird (even if it was a 1.2GHz AXP, it still wouldn't be worth it to money conscience people, since they'll never notice the difference anyway).
Couldn't agree more. The lower end Duron's are the only ones worth buying now (the 1GHz namely) and even that, it's tough to justify not taking the 1GHz T-Bird for only $25 more.
Same as above.