Of of them are junky domains, come on no originality I wouldn't ever use site with domains like that anyway 
Let's face it - mtgox wasn't good of a name either.
Mt Gox was not booked by MK. Jed booked it.
Karpeles bought that domain from someone else.
Wasn't it orginally a magic the gathering cards trading portal or something?
magic the gathering online exchange
Why did he buy that and not just create something else?
MK did not buy it... Jed did. Jed built a business on this domain at the early days of bitcoin and sold the business to MK.