The Armstrongs were there for opening day. It worked for Tom and Robin Armstrong of Huntington Beach, who took their 30-foot motor home to Pala flast month, joining six other friends for a total of four motor homes. When Pala Casino Spa & Resort recently opened a 10-acre, $6.1 million RV Resort, it joined a growing trend of Native American casinos in the region to expand their customer appeal – not with more gaming, but more amenities.