Hi there, I too have numerous 5L brandable .com's based on text speak i.e. removing vowels pyggl.com, pykkr.com etc I have sold a few, such as pukkr.com ($2k for a $20 registration) but I have found that only the person that shares your vision for an app, or startup company, will pay any real money for that type of domain. 5L dictionary words on the other hand can get higher figures, but invented "could be your brand" names are more pot luck (unless they mean something in another language of course..) as keyword value is zero.
Rich