But seriously, vanilla android in nexus normally have mediocre battery life, lousy camera and no features at all to help in day to day usage, other than faster than others regular android version upgrade but they do stop at certain hardware restrictions too, so it's not really a confirm update for life.
Some more Google play does not sell direct in Singapore, so we are always paying more than other countries and no warranty for nexus devices.
Manufacturers UI in recent times have come real close to feel and speed of stock android, like sense and timescape. And they offer much more features, better camera and also much better battery utilisation even with the same batt capacity, not forgetting they have microsd card slot some more.
So in essense, the value of nexus is only applicable to USA or countries that can buy cheaply since those places either u sign 2 yr contract or pay higher than sgp prices for phone without contract.
I am not condemning nexus, in fact I adore the way the hardware so simplistic design and stock pure android experience but I feel these devices cater more for developers than real world usage in our daily life.