All I know for sure is that the exorbitant prices of eating out, whether it's fast food, mundane chain places or higher-end restaurants, has greatly reduced our ability to enjoy these things and the "health benefits" don't compensate for what we see as the downgrade in our lifestyle.
Three combo-type meals at any fast-food place here will run $40; I paid over $40 for three subs at Subway last week. 4 McMuffins and a couple of drinks on Sunday mornings after church is about $25. Breakfast out for DH and I yesterday morning at a Canadian chain place with similar prices to Denny's or IHOP was $58 with the tax and tip. DS and I took DH to a fair-to-middling BBQ restaurant for dinner on Father's Day and the bill for 3, without liquor was over $100. We just can't do it - there's no way to justify spending a week's worth of grocery money on just a couple of (never enjoyable enough) meals. I sorely miss it though and it feels like a pretty big loss.