its all subjective but i am a long time 6700 user and i recently upgraded to the 6800 and though there are things i wish the 6800 had/can do, it's still twice the device my 6700's were. see this thread for more detail...
http://forum.ppcgeeks.com/showthread...114#post265114
PS the black text on this dark blue back ground aint workin so well... just FYI