While I feel there's absolutely nothing wrong with Windows, I think people forget one of the reasons why MacBooks are so great, the track pad. Navigating an operating system or the web on most windows laptops are a pain without using a separate mouse. On a MacBook I have a great deal of control with the already awesome track pad. Combined with quicksilver, I think I'm more efficient than I could ever be on a windows machine or something with a standard keyboard and mouse.
That also doesn't take into account the great battery life. or the better resale value when you decide to upgrade(look at how much outdated early gen macbooks sell for). When you start factoring your overall experience and not just specs into the price, you'll start to see that the "apple tax" isn't all for the name. The computer is far from a bargain, but by no means is it a bad deal like people are making it out to be it. You get what you pay for.
and I'm aware of the op's simple computing needs. Mine are similar except with the occasional movie/tv watching, and photoshop or illustrator use. I wouldn't want to do those things on a screen smaller than 13" or a cramped keyboard. Though YMMV.
But with that in mind, I still agree when people say Apple sells an image and their brand more than an actual product 😛