There are companies that keep purchased brands for years and years. Costs may go up as it becomes "legacy", but corporations do what makes sense. To assume an

There are companies that keep purchased brands for years and years. Costs may go up as it becomes "legacy", but corporations do what makes sense. To assume any product/brand is going to exist indefinitely is unrealistic unless you as a customer have that in your contract (and even then mergers break this routinely).