I think this is 'Apple bashing' at its worst. I'm at a total loss to understand what the real problem is here.
You state you couldn't set up for secure use. It really depends on what you mean by secure. I have a Macbook pro, iPhone and iPad. They are all set up so no one else can access them. Any changes or updates require a secure password to proceed. Remember security also starts at home. Is your ISP secure? Who else has access to it?
You state that your Macbook air was made to order. It seems that the spec you have is a pretty much standard. I don't prefess to know about Apple's stock rotation or supplies, but does it really matter where it goes as long as it does its job? I started out with a basic MBP and upgraded the memory and hard drive myself at greatly reduced costs. Believe me changing those parts is as easy as changing lightbulbs.
Your 4th paragraph states you have problems updating apps. I have no idea where you live but to me the sensible thing would be to book an appointment at an Apple store and talk to the guys there about any faults you may have. I know of cases where they change the product instantly for a new one if there is a genuine fault. Apple staff are highly trained to help and is the only Company I know to hold free workshops.
Correct me if I'm wrong but don't all app stores require some sort of id and credit card details before purchase or update. Apple require you to set a secure password before proceeding. All updates are done via the app store. This is for iOS, Windows and Android. This is the future of computing in general. Like it or hate it the days of buying software via CD's and DVDs is receding fast.
We also noted Obama’s recent statement that he is not allowed to change to an iPhone from his Blackberry for security. Yes, there are security issues with Apple, especially with Snowden disclosing that it is an agency of the NSA and then Apple late last year buying snoop company Topsy.
Blackberry's are also known for their security issues. All you have to do is google Blackberry security issues.
Infosecurity - BlackBerry Issues Four Security Advisories for BB 10 Devices
Finally I would suggest you research individual products before purchase and read reviews on them. Amazon is a good place to start.