After over four years of construction, the stadium was completed in time for the start of the 1972 season. The facility was named Arrowhead Stadium. The Kansas City Chiefs played their first game at Arrowhead Stadium on August 12, 1972, against the St. Louis Cardinals. When the stadium opened it was ahead of its time because of its great sightlines and because it was not multipurpose, like many other stadiums built in the 1970s. Over 79,000 red and gold seats in three tiers enclosed the entire Astroturf playing surface. Since its opening in 1972, Arrowhead Stadium has underwent numerous changes. In 1984, officials discussed adding a dome to Arrowhead Stadium. However, the idea was not considered because of the high project costs it would involve. A JumboTron videoboard was added above the upper deck rim past the south endzone in 1991. Arrowhead Stadium received its present appearance in 1994, when the Astroturf playing field was replaced with natural grass. In 1999 and 2000, all 79,000 seats were replaced with new seats. Arrowhead Stadium has several amenities, including the Arrowhead Club, over 10,000 club seats and 80 luxury suites. Arrowhead Stadium continues to sell out every game, and is one of the NFL’s loudest stadiums. The Chiefs are also known as having one of the best tailgating experiences in the NFL, much like what is found at college football games. In August 2007, the Chiefs unveiled renovation plans for Arrowhead Stadium. This massive renovation plan, to be completed by 2010, will include the Horizons Level that will be constructed on the atop the upper deck on the south side of the stadium. It will include a new pressbox, luxury suites and premium seats. The entire expansion and renovation project will add 500,000 square feet to the stadium. In addition, there will be 50% more concession stands and 80% more bathrooms.