I can say the same to you about Apple's other products. Besides that's not the message your post conveyed. You're saying Apple may as well close up business if the iPhone someday fails. Ridiculous! Apple keeps on reinventing themselves. Jobs got the Mac business to high success. Today virtually everywhere you will see someone with a Mac. After he got the Mac business going again he introduced the iPod and iTunes and they were nothing short of major smash hits. No other company that tried to copy the iPod and iTunes were successful. People said Apple was gonna die if the iPod finally died. Well guess what, they brought out the iPhone.
Then Jobs introduced the iPad and people laughed at Apple. iPad is now the biggest selling tablet in the U.S. You can go ahead and deny that Apple can't make it in life without the iPhone, but they're too smart to rely on one product. They've already proven that. Too bad you refuse to see that.
I don't think anyone will doubt the past because it is easy to see and analyze. What a lot of people doubt is the way forward. Count me in the group that has serious reservations about Apple
going forward. Apple has had a great run, they may yet pull a rabbit out of the hat... but they had better do it soon. The economy looks dicey and and we may have heard the Silicon Valley bubble pop last month. Time will tell.
Compare the general utility of the companies in question: Apple vs. Google. How much money did you pull out of your own bank account to give to Google last year? Now ask the same question about Apple. Go back a decade...
I have given $25 dollars of my money to Google as a company in the last 5 years. I've given Apple several (several) thousand(my last upgrade 5 years ago). Yet, Google has found a way to make way more on me as a product... (most people give them ZERO dollars). Not only that, they provide incredible utility for me and, hazard to guess, a lot here via search, youtube, gmail and docs/drive.
As electronic gadgets become commoditized (xiaomi'ed), the trend toward simplification and cheap devices that speak to the network will gain steam. Apple is a big loser here. Furthermore, the network devices they do make are becoming more and more unfriendly toward people that like to tinker or don't have the capital to upgrade every year (Think the rest of the world). OSX/iOS are becoming more buggy, exactly when it needs to become rock solid.
My data has never been more portable with all the cloud services. The big loser in this space will be companies that stick with walled gardens and autocratic policies. Most apps that people use in professional settings, sans heavy graphics/video, are going cross platform or, more aptly, THE WEB.
Apple is in big trouble. I am a die hard OSX aficionado and I refuse to upgrade my mac until I can take RAM on and off at my leisure. I am not afraid to switch. I ditched the iPhone with iOS 7. What I've found is that I am more worried about data integrity and portability. That is, data that is agnostic to OS and services. If you are 100% apple, you are beholden to the whim of Apple, that is a suckers bet.