That's exactly when you do need to have it, imagine looking at your awesome ship in it's custom skin showing your elite decals hovering over an ice ring with a star and a glowing gas giant in the background... WHO ON EARTH WOULD NOT WANT THAT!! (that wasn't directed at you, just the forum in general)
Also, the external view will not have a reticule so it will be USELESS for external combat and the scanner gives me a hell of a big advantage than panning around in an external camera. This IMHO is a priority feature, not a low priority one which some people seem to gleefully declare. I'd be so happy I'd spend possibly days exploring looking at my ship and also not having the dashboard in every screenshot I take :-(
Agreed. I haven't played ED for weeks and an external camera would go a loooong way to getting me playing again. I'm not interested in PvP, the trading was broken (fixed yet?), the rep system was broken (fixed yet?), but I'd have continued playing just for the pretty views if we had that external camera. Exploring just for the beauty of it. I wouldn't care so much if the underlying mechanics were imbalanced or broken if the visuals were the reward in themselves.
But no, it's all about PvP and balance and multiplayer features atm. Pants.