Advice Needed On Brakes

[JZNx]

Dropped my car off for a brake inspection. Currently at roughly 56k and this is my first brake inspection. Tells me that rears will definitely need to replaced but front currently has about 8mm left. They say that once it hits 4mm they recommend ppl to replace there brakes. They say that replacing the brakes cost $240 but to get rid of squeeking nosie that is coming from the front brakes will cost around $200... He recommends that I replace the brake.

Out of those two options, clearly replacing the brakes will be a better choice. But anyone think that I should just keep the brakes until it hits 4mm? Although, the squeeking will be annoying... Any advice would be nice... Thanks.