the gti is a motoring icon. it invented the 'hot hatch'. another icon is the 911. there are not many motors u could say are truely iconic cars.
another is mini, the beetle.......
icons cost more, are more desirable and defines the brand. i would even say it the 'top' model of the vw range. icons dont just appear- they are instilled through yrs of graft. the mark 6 is the latest version of that heritage. you're getting a piece of history, not just a piece of engineering. the passat is 'just a ' vw model. not as desirable so not as expensive. not only that- one should always be aware of free options, or discounts= its a sure sign of either low sales or they're trying to sell them b4 a new model comes out. if something is in demand- ask yourself ,"why would we need to lower our prices". from readin the forum- the gti is high demand - i knew that already but thats the proof you need.