That is true but if the domain name does not represent anything, then it is just a waste, unless you can come up with something that will be a good representation for that domain name to begin with.
It is a three char domain not a three letter domain. There is a huge difference in it. I think you could get XX for it... maybe around 35-50.. but it all depends on the buyer and how much you are willing to let it go for... If it was a Three Let domain around XXX+ LLL NNN LLN NLN