Agaricus bisporus
Interesting to see that in order to make your argument sound better you quote "nearly £2000" cost to ex Go pilots. In fact the figure is £1100 - exactly! From that figure you can deduct the amount that you normally spent on your own food. Now even if you eat like a sparrow - that's going to take it down well below a grand.
Now don't get me wrong - I totally disagree with this charge anyway but why quote totally inaccurate figures? - it doesn't help anyone.
Another point worth noting is that the Go schedule allowed crews to organise their self feeding with minimal disruption - the easy schedule does not allow that.
Whether it will or not in the future remains to be seen - I have my doubts!