Absolutely true; but it also does not mean simple = inexpensive (though it can, as it was in your example). I've eaten great meals for >USD 1000 per person (typical 3-star dinner with wine), and also for <USD 3 (carnitas burritos). Enjoyment and even quality can be all over the place. But I disagree that eating at better restaurants makes you jaded for "simple" food. Rather it makes for an appreciation of what food can be like. I now seek out good-tasting butter, milk, eggs, meat -- because I can taste the difference. Generally I can buy better ingredients than most restaurants have, so I tend to make simple dishes with simple ingredients at home, for a fraction of the restaurant price and with more nutrition and enjoyment. But I also stock 5 kinds of salt at home (the best being Murray River salt, which is soft and airy like snowflakes and it shows in the flavour!). Spoiled? Absolutely ... so I prefer to eat at home given a choice. When I cannot, I try to find restaurants that have a love of food and enhance their ingredients.