It's healthy to know how to pass something on and walk away from it. But if I was selling a business, looking for someone who would be a good steward of the trust I'd earned with my customers would be important to me, if possible.
And if they break that, the business won't be with what they paid anymore, so it's not good for them either, unless they know they want to take it in a different direction. Even that can be done well.