By comparison, an unlocked 820 is £316! The red one is cheaper at £269. The 620 unlocked from ‘cleverboxes’ is £219.
The 920 is set to get GDR2 and will be upgraded to GDR3 and eventually 8.1/Blue. There’s a lot of life left software wise and the hardware is definitely a lot more future proof than earlier lumias (OIS camera, winning several camera shootouts, super sensitive screen, wireless charging, bright sunlight readability, 720p display, stereo 1080p rich recording audio in procam).