I got a Macbook Pro repaired recently and the Genius guy took me aside and said I got a great deal because they have a per-model, per-service visit price cap on replacement parts charges for repairs. Meaning that in one visit, you can get your Macbook repaired and replace the screen, the motherboard, the hard drive, the power board, the battery, the keyboard, pretty much the whole thing, and the price (for parts) is capped at around $280 for my particular model. The labor price is not capped but they are good at what they do, so the labor is super fast and ends up being cheap.

I had a similar experience with an iPhone repair, where my camera had dust in it. Apparently the best way to do this is a back cover replacement, and the back cover comes with the camera built in. I was pretty scared until I heard the price, which was I think at the time $30, way less than third party vendors charge for this.

Again the downvotes, for providing useful information, are really baffling here.