Those South American beauties are back at the Fairgrounds this weekend for the Alpaca Showacular, moving into the Expo Center after several years filling the dairy cattle barn. The larger venue will allow expansion into a brighter, more maneuverable building, allowing visitors to get a better look at these amazing and adorable mountain dwellers. More vendor space and improved food stands can only help the event grow, just as the popularity of alpaca ranching has developed in New York, the eastern US and Canada.  Admission is still free Friday through Sunday, but petting the stars is a challenge as these llama cousins are generally shy.