So, just about everything that can be improved, is being improved. If you define "improved" to mean more features, more buttons, more choices, more power, more cost.
The washing machine I used this morning had more than 125 different combinations of ways to do the wash... don't get me started about the dryer. Clearly, an arms race is a good way to encourage people to upgrade.
I wonder, though, if "good enough" might be the next big idea. Audio players, cars, dryers, accounting... not the best ever made, not the most complicated and certainly not the most energy-consuming. Just good enough.
For some people, a clean towel is a clean towel.