The Plaza casino in downtown Las Vegas will celebrate the country’s 250th anniversary by hosting a special $250,000 Super Bingo event July 4-5. The quarter-million dollar prize purse is the largest ever offered for the monthly Super Bingo event at the Plaza, which on July 2 also will celebrate its 55th anniversary. “The Plaza will be celebrating its 55th anniversary and the 250th anniversary of our great country in July, so it is only fitting that we make our Super Bingo event that month our biggest and best ever,” Plaza CEO Jonathan Jossel said in a statement. “Our Super Bingo events have always drawn a packed crowd to our convention space, and we anticipate the July event to sell out quickly.” Super Bingo typically draws close to 1,000 people from across the country. Bingo-only registration is $250 per person for the special event, with game play on Saturday, July 4 and Sunday, July 5.…