ELI5: Explain Like I'm 5

Whole-life cost

Whole-life cost is a way of understanding how much something will cost us over its entire life. For example, let's say you want to buy a toy. The cost of the toy is one thing, but you also have to think about how much it will cost to keep the toy clean, store it, and repair it if it breaks.

Whole-life cost is like buying a toy. When we buy something like a car, we need to think beyond the initial cost of buying the car. We also have to factor in how much it will cost to insure, maintain, and repair the car over the years that we own it.

So, let's say you're trying to decide between two cars: Car A costs $20,000 to buy, and Car B costs $25,000 to buy. If you were only looking at the initial purchase price, it would seem like Car A is the better choice. However, if you factor in the whole-life cost, you might find that Car B is actually the better value.

Why's that? Well, maybe Car A has a reputation for breaking down easily, which means you'll have to pay for repairs more often. Meanwhile, Car B is known for being reliable, so you'll spend less money on repairs over the car's lifetime. Additionally, Car A might be more expensive to insure, use more fuel, or have more expensive replacement parts than Car B.

By thinking about the whole-life cost, you can make a more informed decision about what to buy. It's just like choosing which toy to buy – you need to think about how much it will cost you in the long run, not just how much it costs in the store.