Dishwashers

Interesting article about what has been going on with dishwashers.
In summary they have gotten a lot worse.
In order to reduce water use from the original 15 gallons to 3 gallons, cycle times have increased. The chart (source) is striking.
The wash results have also gotten a lot worse due to chemical regulation.
Consumers think that by buying a newer model these problems will be solved but the reality is that an older model will do a better job.