Yes, however are like fruit juice, the more you dilute them the worse they become.
A change of one letter can mean the difference between a domain being worth millions and being worth nothing.
"Femdom rules" only has 50 people a month searching for it as opposed to 1,500,000 for "femdom" which is why I say the actual name is worth next to nothing, but that doesn't mean you cannot create value in time with it
PS: I am confused as to why you got a hyphen when they are almost guaranteed to trash the value, especially when femdomrules.com is available?
I used to own femdomrule.com but let it expire. Next thing I knew it was taken. At that point I knew nothing of selling domains! So what you're saying is femdomrules.com is worth more because it lacks a hyphen? Would I had a better chance of selling femdom-rule.com without the hyphen? lol
I agree about the issue with the hyphen, but I still think you got a good one here.
I would argue that the words are logical, since femdom is about rules.