About inetnum "ownership"

Hi, How come we've had an inetnum market in place whereas an inetnum cannot have a market value ? It's my understanding that the IP adress space is nothing but numbers and that RIR/LIRs are only responsible for the uniqueness of allocations and assignements, that is, a transfer of liability over a shared and common immaterial resource, between community members. I'm wondering how did we made "Temporary and conditionnal liabality transfer" a synonym of "perpetual and inconditional usufruct transfer". May you please enlight me ? Thanks ! -- Jérôme Nicolle +33 6 19 31 27 14