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.
1)cryptoscenario.com
2)theoneaboveall.com (marvel most powerful superhero)
second one can be worth some real money but first is not really worth much on its own.
It depends on how you sell them . flippa.com is a good option