As others have mentioned, what you see on forums usually are the ones who have problems. Apple's computers are not less reliable than similarly priced computers from other companies. What you get within any product category are specific models with a design flaw, or specific series of a specific model get a batch of faulty parts from a manufacturer (which usually results in a recall or a goodwill repair), and then you have your lemons, which are bound to happen to anyone.
The experience I have with Mac laptops is that they are at least as good, hardware-wise, as other premium laptops, with the additional benefit of running an operating system whose footprint doesn't grow with use and age, making the computer seem slow over time.
