The clear edges of physical products make it much harder for feature creep to happen.
This might be true for simple products like water bottles, but does not hold true in all cases. Consider a car radio. I'd LOVE to have a car radio that had two knobs: volume, and tuning, which cover 99% of my use cases for a car radio. Try to buy one, though.
Or a cell phone that's just a plain phone, with nice buttons.
They do exist, just go to a cellphone shop sometime.
The problem is not that they don't exist but that everybody prefers to buy the touchscreen phones and then complain how slow and unpractical they are...
This might be true for simple products like water bottles, but does not hold true in all cases. Consider a car radio. I'd LOVE to have a car radio that had two knobs: volume, and tuning, which cover 99% of my use cases for a car radio. Try to buy one, though.