Apple succeeded because of high product quality, genius marketing and a lot of timing luck. All of these 3 were essential. Anyone dismissing one of them is usually being biased.
"Luck is what happens when preparation meets opportunity."
This applies to all things more so than most people are willing to admit.
Many prepare and never have the opportunity, many have the opportunity but do not prepare. Neither works without the other and one of them is mostly out of your control.