I bought my first Mac when I was working for a large computer company. I used their brand of computers at work and at home. No sense in buying a computer if the company will lend you one. When it came time to buy a computer for personal use I thought long and hard and decided on a Mac. Why? Because I worked on computer problems all day and I didn't want to have to spend my nights doing system administration tasks.
The Mac worked great. It had the applications I needed. The only thing I hated about it was when a process would hang or crash, the entire operating system did the same. I was used to a much more advanced operating system. Mac OS X took care of most of the problems.
We bought a PC a few years after that, mainly so my son could play Roller Coaster Tycoon. Hey, I have my priorities!

That computer wasn't connected to any sort of network or the internet. It still had tons of problems. I spent more hours doing system administration tasks on that thing. The two most frustrating things for me were the crappy help function and the disk defragmenter that crashed every time we tried to use it. Things only got worse when we started using it online. Again, I was used to a much more advanced operating system.
Meanwhile, I bought another Mac for my use. I still have it. The hard drive was failing so I put everything onto a partitioned external hard drive. The only other problems I had were the ethernet port and entire logic board getting fried due to a lightning strike and I ruined a keyboard when I dumped a soda in it. The lightning strike was amazingly covered by the warranty (only because there were no visible signs of scorching on the card) and the keyboard mostly worked after I dumped the soda out of it and used a blow dryer. If Apple had had the foresight to put drain holes/vents in the bottom of the keyboard, I probably would still be using it today.
The Mac still does everything I need it to do but slowly. I still use it as my main computer but am now using a laptop for playing VMK. Yes, I do have my priorities!

I don't see myself fully migrating to the PC in the near future nor do I see myself upgrading the Mac in the near future.
I guess my point is, in my experience, both systems have their strengths and weaknesses depending on what you are trying to accomplish.
PS - Speaking of old computers, I did use a Commodore 64 and a Trash 80 but the oldest most ancient computer I used was a PDP-8 when I was in college. To program that machine, you toggled switches to match the binary code and hand loaded and executed each instruction. The code was always expressed in hex but the switches were grouped together for octal.

I never figured out why. To save your program, you sent it as output to a teletype machine which punched holes in paper tape. The most basic computer I ever programmed was a 6502 chip on a breadboard and the program was created by adding a bunch of wires and connecting them properly to AND OR NOR and NAND gates.