My PRS-600 looks very classy and in the same time its construction is robust (not the cheap plastic as other readers).
However, the selection of books in Sony Store is its limiting factor.
IMO, with a better screen (contrast), this model would have been great and no cheap competitor could have beaten them (in spite of price).
I agree with banjobama - my home is full of Sony products, too (my TV, my MP3 player, the computer I am writing on, DVD player) and these are long-lasting and quality products. I respect their decision.