Because that's what I want and that's what I've decided on.
I don't buy my guns to be like everyone else, have what everyone else has or to impress anyone else; I buy them for me, because that's what I want. I happen to like a few features the DE model has over the Walther P99 (they aren't exactlly the same) and the DE .50 is about half-way paid for in my savings for a boar hunting trip planned for this Fall.
I just want a dealer, ANY dealer to take my money so I can buy the dang thing..... I've learned the firearm industry certainly has it's quirks in the overall customer service department compared to the high-end racing industry I just came from and owned a 10-year business in, that's for sure.