Direct Anywhere with reference to NRT allowances, - the allowances are based on eating at the average priced restaurant in the crew hotel give or take a bit.
NRT allowances are boosted somewhat as a trade off for no longer staying in Tokyo.
If the crew then choose to find a cheap eats place and save their allowances then good on them, in the same way that cabin crew take suitcases of tuna to NRT then best of luck to them.
Personally I tried to enjoy myself on long slips especially in NRT, day trips, overnight trips, and eat at different restauarants, and generally come back with little or no allowances.
I am glad I did, and will continue to, because invariably QF pull out of ports and you wont get another opportunity (or not for a long time).
I found it highly amusing that a heap of crew used to do NRTS, save all their money for their mortgages (why you would factor in your allowances into mortgages is beyond me, or thats right, we get taxed now because of that!) and not once in a 3 year period of long slips, ever go into Tokyo.
But each to their own eh....