We live in a world where we can get anything almost instantaneously. As a marketer, this has affected my job in numerous ways, one of the overarching themes being that my clients typically want results and they want them yesterday.
That's a hard argument to go up against when you are trying to explain to them the benefits of creating an inbound marketing strategy. Most won't see results immediately and therefore want to try something different. One problem I often face when suggesting inbound marketing tactics, is advising clients on organic vs paid search.