YUROP

Yeah this is my point though. I have family in Greece and they buy 10-15 liters of olive oil at a time. It lasts them a year or even less!

My reference to eggs, was that it is and should be common food ingredient for everyone, but is often a luxury product for most

The quality of olive oil degrades over time. It won't become rancid if stored properly, but it will lose its flavor, to the point where a one or two year old bottle of good expensive olive oil will be about as good as a fresh bottle of cheap olive oil, especially if you broke the seal on it a while back.

If you get good olive oil use it as soon as possible, that's when it'll taste the best and when you'll get the most bang for your buck

Many people save good quality extra virgin olive oil for special occasions, but it’s a fresh product that should be consumed! ... We recommend using up the oil within 30 to 60 days upon opening

Source