While you bring up quite a few valid points, I strongly oppose that "the complexity related to its implementation is immense". These so called complexities has to be weighed against the cost of keeping patching IPv4 networks into still working as functional networks. And that job gets more complex and costlier for every passing day.
With IPv6, most issues you have in IPv4 space would be the solved the instant you enable IPv6. All the hacks goes away. It's a nice, clean network again.
The cost of getting IPv6 capable routers should be negligible as anything worth the money bought the last half decade already supports it. Chances are if you haven't replaced it yet, you will anyway, due to stupendously increased bandwidth requirements we've seen the last years.
I'm not saying it's a free ride, but I'm saying it's a no-brainer. Because keeping patching the rugged IPv4 landscape we have now is not going to stay viable. And then you might as well invest in the proper solution right away instead of wasting money, time and resources on a stop-gap solution.
With IPv6, most issues you have in IPv4 space would be the solved the instant you enable IPv6. All the hacks goes away. It's a nice, clean network again.
The cost of getting IPv6 capable routers should be negligible as anything worth the money bought the last half decade already supports it. Chances are if you haven't replaced it yet, you will anyway, due to stupendously increased bandwidth requirements we've seen the last years.
I'm not saying it's a free ride, but I'm saying it's a no-brainer. Because keeping patching the rugged IPv4 landscape we have now is not going to stay viable. And then you might as well invest in the proper solution right away instead of wasting money, time and resources on a stop-gap solution.