I'm afraid i'd have to agree...
7 letters, hypen, .de tld, no history. The resale value is close to $0.
However, i've bought domains in the past myself (not going to disclose them, since not all of them are whois protected) and i do think that if you're going to invest a lot of time and effort into your blog, any domain can be a hit, it's just the domain name itself being worth nothing at this moment.
please give a realistic estimate on each below,
1)cryptoscenario.com
2)theoneaboveall.com (marvel most powerful superhero)