Free: Contests & Raffles.
For all people looking to get into raising pigs, I would suggest very highly in having a concrete pen, you don't need allot of room, you want most of the feed to go into growing, not into energy to run around. Pigs are very clean animals though, just not when dirt is involved and I also believes by having no dirt around, it gives a cleaner taste of meat. Really a simple animal to raise though and are great for kids to show in 4h and FFA without too much effort.