I can't believe how much of this stupid technology we have purchased over the years, and conclude that it must be only because there is no alternative. But such stupid technologies will be replaced. Installation is today much easier thanks to a good computer program called 'Setup'. Running the program is a different matter. To make a phone call, I dial the number.
Simplicity goes hand in hand with range of function.
The problem with MS-Word and a host of other programs is that it tries to be all things for all people. Compare that with GuruNet, which lets me look up any word on my computer screen by alt-clicking over the word. Good technology doesn't require parts. You don't need to replace anything in your telephone. Sometimes it is not possible to do without parts - but this is a sign of a transitional technology.