Well, if you'll look at my Flickr, I have plenty of LDD stuff. Why? Because I don't have actual Lego and have no resources to get one. Also, I know that I would not stand the limitation of real Lego - insufficient bricks, insufficient funds to get bricks, Russian Postal Service which is terrible... All those are definitely excuses for some people, but for me it's a problem. That's why I use LDD. Also, it turned out that my FTL ship, Kestrel, is as good in real life as it was in LDD.