2. The Production Value
You may or may not already know this, but the Western is notoriously one of the most difficult and expensive genres of film to produce simply because of the period in which it they're set. Think about it; there's the costumes, the horses, the architecture, the technology, the settings - there's no way to simply stumble across these things when dealing with making a Western as you might be able to if you were making a movie set in the 20's or 30's. Each visual element must be sourced (often built from scratch) and maintained throughout the entire duration of the shoot. With that said, Django Unchained looks to have all of that more than well in hand thanks to an undoubtedly staggering production budget and of course Tarantino's nigh on superhuman knack for detail. From the trailers alone, we can already glean that Django Unchained's production value is through the roof, but I guess you really should expect no less from Tarantino.