I just heard Alan Titchmarsh on Times radio speaking in a related issue about Avocados and how they simply are not a sustainable food, particularily in the quantity we are now eating them.
They require rainforest deforestation, long distance haulage and huge amounts of water in a place that has water pressures.
They should be a hugely expensive luxury if we were made to pay for the real cost of them - but we don't.
If Lidl was a true budget shop that sold only what was seasonally available in the UK you would be on a diet at this time of year of cauliflower, kale, leeks, purple sprouting broccoli, salsify, spinach, spring onions, swede.
It would be very healthy, lots of greens, but maybe not what we're used to.
I've tried growing vegetables in the past few years and it's really quite costly and labour intensive, especially dealing with the many pests that flourished in the wet weather.
It made me appreciate quite how good we have it in our food variety and pricing.
I do appreciate the issue with housing costs - but that is something that has been created and I'm not sure is going to slow down soon.