I mentioned two ways the top is attached - I neglected the 3rd. Whirlpools control panel is held on by 2 screws on the back.
Here's a video of a pump being replaced. Yes, it's this easy to replace parts for most brands of washing machines. Another very common repair is the coupling from the motor: 2 plastic pieces with 3 holes each & a plastic thing between them which couples them together - another $10, 10 minute repair (if that) and reason many people just go out and purchase a new washing machine.
http://www.youtube.com/watch?v=Ue4pkhSJw7U
(he sounds like a goofball, but you can see how simple a washing machine comes apart - definitely worth knowing.)
I have zero experience with front loaders. I don't care that they use less water. But, if repairs are more difficult, then that's a huge reason I wouldn't purchase one. Our last washing machine worked great for over 20 years. During those 20 years, I replaced the coupling twice, and the dog teeth (or whatever they're called) once. Ran like a brand new machine after those dog teeth were replaced. Unfortunately, the room it was in got really cold & everything froze. The motor overheated when trying to run, etc. - not worth bothering with at that point. I saved a few parts though.
