You may never need every single one of the Apple-made dongles — not everyone needs to connect their Mac to a projector, after all — but there's a decent chance you'd need many of them, especially if you're a diehard Apple consumer that likes to buy all the latest products.
So, after shelling out hundreds, or even thousands, for a new iPhone or MacBook, expect to spend about $857 (not including tax) to get every available dongle on the above list. Is that expensive? Well, a standard iPhone 7 Plus costs $869 — just $10 more than all the dongles.