The gladiatorial arenas in Rome and ancient Greece were extremely small relative to today's giant stadiums, which makes sense, because those cultures were all about pleasure. From making love to anything, anywhere, anytime to promoting battles to the death, you knew you were about to see something interesting for your meager wages. And frankly, you would see it up close. Not today. Now, you're going to pay a solid day's wage to see two tiny little figures fight each other. Sure, the crowd noises will be cool, but you might be better off just ordering the fights in HD on PPV.