"Worth it" will vary person to person, but IMO the 8" display makes the interior. It looks kinda cheap without it. Not to mention that a simple hack truly turns it into a mobile infotainment system. Put me down for a YES!
By brother has a '10 V6 Premium without it and I second this. I do have it in my '10 GT and wouldn't have it any other way. It does really tie the interior together. Besides, it's a cool toy with lots of features.
2010 Mustang Premium GT 5spd MT, Torch Red/Black leather; Rapid spec 400A, Fixed glass roof, Sync, Nav,3.73, 20% tint, smoked fogs, CDC Blackout panel, 19" Staggered, matte bronze TSW Panorama wheels, Hankook Ventus V12 evo tires, SR Performance springs, BMR ajd Panhard
"...evil will always triumph because good is dumb."