Definitely loyal to Apple and their products.
Reasons are many but begin with the original Macintosh. The reliability, and software integration was the best I could find. The whole mouse, menu, graphical user interface was pleasure to use vs IBM and dos. Reliability and customer service over the ensuing years further cemented the loyalty.
Forced to use Windows machines for work, further convinced me that that Apple was superior. The slowdowns, freeze ups, blue screens, malware and viruses left a bad taste in my mouth for non Apple products and software. Tried IBM, Compaq, HP, Sony, and assortment of off brand computers. None were as reliable, and worked as consistently with minimal problems over time as Apple computers.
Used the iPods and found them again to be superior to other music devices. Again reliability, ease of use kept me happy. All my other tape, disk players went unused.
The original iPhone announcement was a milestone in marketing. I had been active with all the latest flip phones upgrading as new devices appeared. Was very happy with Motorola devices. Sensing the first iPhone was perhaps not yet delivering fully on the promises. I waited till the 3GS came out. Based on user reviews and articles I jumped on board with iPhone. So I don't blindly scarf up every Apple device from day one. This "isheep" analyzes and decides based on my needs.
The iPhone 3GS experience was so smooth I went to 4s, 5s, 6 Plus, and now 6s Plus. Again reliability, ease of use, software updates, privacy/security issues, customer service, kept me coming back. While the introduction of larger screens tempted me to switch at the 4s stage, the issues people were having with slow phones, malware, lack of software updates, and slowdowns once they did get updated bloated software kept me in the Apple camp.
At first the iPad did not interest me. I did not see a real use case for me. That all changed with the iPad Air. I caved and got one and now it serves as my main consumption device. Upgraded to iPad Air 2 and again the iPad's performed for me without a hitch and continues to do so. During this I purchased several MacBook Pros and I have again found no reason to switch.
Loyalty from me for Apple products was and is being earned daily by the ease of use, integration of the whole ecosystem, reliability, customer service, and product innovation. Apple may not be always first out with a feature. But when they do introduce something they have thought it thru and make it work the best. And they don't stop improving. Take the finger print sensor. Worked better than most others in first implementation. And each subsequent product release and software update it got more reliable, and faster. To the point now, a few people complain it's too fast. These are noticeable improvements to me and I appreciate them with continued purchases.
In closing, loyal to Apple, yes and from my experiences, for valid reason. I have not had a single Apple product that failed or had to be repaired or returned. No other products I have purchased can equal that record.
iPhone, iPad, iPod, Apple TV, AirPort Extreme, MacBook Pro all operating well, integrated, communicating seamlessly. Oh and sitting in corner my HP desktop that froze up and won't let me restart it because some boot file is missing or corrupted. And my Sony laptop that crashes regularly before I stopped using it.