Quality of glass and coatings as well as craft in assembly. Like you say same name but higher price sounds good, but Ford makes ******s as well as Lincolns. 5 or 6 days may not sound like much, but if at dusk you have a nice buck in your shooting area and the scope is too poor to see through you have wasted a lot of time and money. There are a number of good scopes that you can get for about $250, like the Bushnell 4200 Elite 3x9x40.