The delicious price usually depends on ingredients, production technology, region, market demand and other factors. Some delicious foods may be expensive because of their rare raw materials, unique production techniques or being famous in specific areas. Here are some relatively expensive foods:

1. Caviar: Caviar is a kind of high-grade food, which is made of sturgeon, salmon and other fish eggs and is expensive.

2. Bird's nest: Bird's nest is a kind of food solidified from saliva in bird's nest, which is expensive because of its rarity and nourishing effect.

3. Tricholoma matsutake: Tricholoma matsutake is a rare edible fungus, which is produced in temperate Asia and is loved by people because of its unique flavor and nourishing effect.

4. Bluefin tuna: Bluefin tuna is one of the most expensive fish in the world, and it is sought after mainly because of its delicious meat and high fat content.

5. Kobe beef: Kobe beef is produced in Kobe, Japan. Because of its special breeding and cooking methods, it tastes delicious and expensive.

6. Black truffle: Black truffle is a fungus that grows underground and requires professional collection skills. Due to the scarcity of production, the price of black truffles remains high.

The high price of these delicacies is usually related to their rarity, high quality, unique production technology and regional characteristics. However, not all these foods are suitable for everyone's taste. Please choose according to your personal needs and economic conditions when purchasing.