Due to design considerations, Macs are easier to fix when there are problems. The PC hardware market is fiercely competitive, with a vast number of vendors. For the consumer, this means lower prices and more choices. The latest and greatest technology is available sooner, and as cheaply as companies can sell it. If you buy a pre-packaged bundle, it comes with most of what you need included.
Many companies make and sell PCs, with varying degrees of reliability.
All Macs are made by Apple, and conform to the same standards. The company that makes the OS software also makes the hardware, so the two work elegantly together. With PCs, since there are so many manufacturers and OS options, compliance to standards is inconsistent, and special software is often needed. You're closer to the operating system, so you can do more tweaking if you like. Plus, there are many discount Mac mail-order catalogs.