Fine, except some of the big owners will not sell under almost any circumstances. There is a domain which I am prepared to pay five figures for, but the owner (one of the largest domain squatting firms) has a policy of not entering into correspondence about the sale of their domains. Frustratingly, the domain has virtually no commercial value to anyone but myself, but the owner has obviously decided that it is not worth their time.
Personally, I think that the current domain system is a nonsense. In a system with a finite number of short, pronounceable names, it seems manifestly unjust that most names are not being put to good use. I'm of the opinion that ICANN should set a blanket ban on squatting, and that failure to make good use of a domain should be automatic grounds for revocation under the ADRP.