Hi,
Do the math. A limited resources (IPv6 addresses) distributed over *another* limited resource (humans running networks) will or will not run out, depending on the distribution ratio.
As in: if you have 100 cakes and 5 kids, there is no way these kids are going to eat all the cakes, no matter how liberal your cake distribution policies are.
With the start if IPv4 it was thought that this amount of address space would be never run out. Should we do the same error again with IPv6? I am very sure IPv10 or similar will be required in future if we waste address space now (maybe even if we not). No one ever knows what happen in future and the use cases are maybe still out of our possible realization. Just one example: What if in x years there exist robots every part of them communicate with a seperate ip address and one robot could utilize 10.000 addresses or more. I am also a customer of different hosting/colocation Companies and most of them provide me with millions of IPv6 addresses that I not plan to use. 1000 of them would be sufficient for me for very long and if I really need more why just not then give additional nets away. Michael