We have been wondering about the benefits of Premium economy v economy when we do eventually make the flight. We will be two adults and two 8 year old boys (Can't afford business class and the boys wouldn't be accepted anyway!)

We are trying to decide if it is worth the benefit of digging into our capital to upgrade or should we just stay in cattle class (as my brother calls it!). we are currently thinking of flying Heathrow, Singapore, Christchurch with the potential for a stopover in Singapore.

-So upgrade flight
-Upgrade Hotel/length of stopover in Singapore
-Do full journey on the cheap and save our money
-other options I have not thought about

Any ideas and different views about the above options would be gratefully received. Curiously the boys thought Singapore would be a good place to visit...so I'm all for it!