When you buy or sell a business, it's not just the employees, plant and inventory that gets transferred. It is also the customers, the goodwill, the brand, the corporate culture, and all the intangibles that form the relationship between the business and its community. Much of that culture has been developed and handed down by the originators of the business.
If you are the buyer, ask yourself if you will be able to maintain the relationships that the previous owner has formed, and continue to build the brand going forward. If you're the seller, how important is it to you that the culture, vision and goals of the business be preserved by the new owner?