[Mister Magoo]

No, it hasn't changed anything, of course. I would like someone to explain why the ownership of these weapons are so vital. If one goes to

http://www.awbansunset.com/whyown.html

here's their rationale for allowing the law to sunset:

"Military style rifles are well designed and very reliable. They are fun and economical to shoot. They can be easily “customized.” They are accurate and they can also provide an effective defense for yourself and your loved ones.
The real question should be: Why wouldn’t you want to own one?"

Proponents of the repeal of this law will have to provide better rationales than this.

[ez]

The purpose of the law is to maintain a well-regulated militia. To be effective, that militia should be armed with whatever military-style firearm is common to the times in which he lives.

That includes the M16, the AK47, the HK91, and all other military rifles commonly in use today, IMHO.

[El Gato]

Proponents of the repeal of this law will have to provide better rationales than this.

So now we have to provide "rationales" for demanding that our rights be respected and more importantly for the Rule of Law, that the Constitution be followed. Following the Constitution is not just something for the Courts to do, but rather for everyone in government, including state governments, elected or not. All are required, by the Constitution itself, to take an oath to support and defend the Constitution, and we should insist that they do just that.

[El Gato]

I would like someone to explain why the ownership of these weapons are so vital.

What part of "right of the people" and "shall not be infringed" do you not understand?