A lot of times CL pigs are pigs that are destined for the shelter unless their owner can find someone else to take them, or in many cases the owners posting on CL are in such a desperate situation they don't care what kind of home their pigs go to, or if they go to snake/reptile owners (of course any reptile owner who actually cares about their pet wouldn't be looking for meals on CL, either) or other bad situations. Acquiring a pig from CL is always a good thing as long as it's a private rehome and not a BYB. One downside of CL and other similar classified sites is that you are usually in direct contact with the negligent and dimwitted owners, but it's almost always a very good thing for the pig(s) if you can stomach it.
Let us know what you decide and please post pics of your new additions when you get them!