Is the Thunderbolt Display worth the lay-down?

For £899 (student discount not included) It's quite pricey in regards to the competition:

LG EA93 for £400 is 29-inch 5ms IPS. Not to mention the far better contrast ratio of 50000:1

Why the price difference?

Sure I can daisy chain, but what else? Is it purely brand?

I might as well pay a couple hundred more for an iMac, something I've heard regularly on the web but doubt many do.

Anyway it might be becuse it looks great but I can't make my mind up. Thanks