I've never used a DR1000 so I cannot really compare, but I bought the device specifically for reading academic books and journal articles in pdf format. Mostly it does fine with pdfs with this firmware upgrade - big margins can be dealt with by selection zoom, columns can be dealt with by pan zoom. It is not the most seamless way of reading large format pdfs but it gets the job done.
As to price - I've got no real idea but I'm thinking around 200 euros.
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