The title is a bit of an exaggeration.
Why do corporations change shampoo and toothbrushes so often? I’ll go through 10 different shampoos and toothbrushes, then find ones I like. I’ll probably be able to purchase them again a few times before the ones I like are no longer available.
What are the forces driving manufacturer’s to change their basic wares so often? Besides Wall St. greed, that is?
The Oral B knockoffs can be had for about $1 each or less. They have models that use the same heads for almost 20 years.
This - get the no-brand replacement heads. No way would I spend the prices Oral-B are asking.
Sometimes the big brands can end up as better device purchases, since despite being more expensive upfront, there are plenty of cheap third-party consumables available.