How big to Teacup Pigs grow?

As far as I know teacup pigs don't exist & is just a clever marketing ploy to get stupid people to buy dwarfed & sick pigs. Pot Belly pigs & other mini breeds are very unpredictable as far as their final size goes, some stay mini some grow huge. Also all mini pig breeds have higher than normal % of illness & early mortality's due to genetic problems generally caused by the in breeding that created them. So if your ready to pay heaps to buy the pig, then more spend a lot more at the vets & maybe have the pig die young & if it is healthy or recovers you may still end up with a huge pig go ahead buy a mini pig. Oh & it is not uncommon for Pot Bellies to turn aggressive at ual maturity that's why so many are dumped & surrender every year. They take a lot of time, love, training & need a pig friend also & many people just do not get it.