Marketing campaigns march on - day in, day out, week after week, every year. Yet for all of the effort that goes into each, they have a finite existence. Sometimes it's a few weeks, other times, it's a few months. But the reality is, campaigns die. Sometimes we remember them; many times they're eminently forgettable.

This is neither good nor bad; it's just the way it is. It's how the business world has functioned and what we've been driven to expect, based on product lifecycles and necessarily limited marketing budgets.