ORIGINAL: hardcorehunter
For one, you don't need a bowpress to change the strings and cables. The design is suppossed to providea more accurate shot with no hand torque.
As far as weights go, the Tribute and Guardian are the same; 4.2 lbs. The Allegience is 3.8 lbs.
We didn't need a press to chance the strings on the old tear drop models either, but we've seen that design come and go.
The only thing I can see being the main selling point is what I noticed Greg mentioned - You've got all the benefits of shooting a deflex riser bow with the same speeds as a reflex design.