The upgrades the T3 has over the T2 could not have been done with a simple Firmware upgrade. You can only do so much with "Versions" At some point screens have to become better, clearer, Sliders added, New Voice technology has to be added. controllers, drives..(I prefer a universal hard drive over a proprietary flash drive)

Is it worth $4000? $2000 plus a T2? That depends on ones financial situation. People pay that much for watches.