Oh there are good views in lots of places in Christchurch, Wellington, Auckland, etc. I was specifically referring to mountains, as in the "landscape of the Lord of the Rings" the GP referred to.
Besides, Sumner doesn't seem very safe, earthquake-wise, which will be contributing to the price.
Apologies for misconstruing your comment. I had no idea about Sumner being more prone to Earthquakes; I'm genuinely glad you replied because i was flirting with a move there in a few months.
Not so much more prone to quakes, but there is more chance of slips and liquefaction. If you're moving to Chch, I'd say keep to the western half, where everything's been basically fine.