My perspective:
For the PS2 and Wii this would be overkill.
For the XBox 360 and PS3 it's very desirable. Uncharted is already taking up 91% of the space available on a single layer Blu-Ray disc (and like with Ratchet and Clank TOD combined with reduced loading times), now with the technology in place and basic game concept worked out Naughty Dog can make Uncharted 2 an even bigger game the next time and maybe use a dual-layer Blu-Ray disc instead like Final Fantasy XIII, so they don't have to make any sacrifices while still being able to shoot even higher.