Yes, there are indeed thousands of IC chips, especially those with high performance, high integration, complex functions and special processes. These ics are usually used in high-end fields, such as military, aerospace, medical, etc., or for some specific electronic products, such as smartphones, tablets, servers, etc.
However, not all ics are expensive. In many cases, the price of an IC depends on factors such as its functionality, performance, manufacturing process, and market demand. Some common ics, such as memory, logic circuits, and linear regulators, are usually less expensive because they are widely used and relatively cheap to produce.
In short, the price of ics varies according to factors such as type, performance and market demand. If you need to buy an IC, it is recommended to understand the market demand and the performance and price of different products in order to make an informed purchase decision.