Event Planning is simple but complex. It is simple because all the tasks required are very simple to execute. It becomes complex because once you get deep into the planning of the event you have tons of simple things to do but if any of these are neglected it can cause a crisis for your event. A simple item like a bottle opener missing at a fun day may through a damper on the event.
The old debate continues, what is marketing and what is PR? Is PR not just a part of Mc Carthy's Marketing Mix? Check out Cutlip, Center and Broom for a full debate on this, however I would tell you that if you take pigs to market you would get some money for them, however if you don't take the pigs but get every one in the market to talk about how great your pigs are you create goodwill for the pigs and by extension a loyal demand.