Suckes I destroyed a Kato memorial helmet, but it did it's job. Bought another X11 to replace it.
The best helmet to buy is the one that fits you the best, and is the best overall helmet you can afford. Buying a helmet just cause it's an Arai doesn't do you much good if it doesn't fit right. If you get the better Arai, Shoei, Suomy, KBC, AGV, etc. helmets your getting an excellent helmet. Buy the best you can afford and fits your head the best and you should be okay.
As a side note, my Kato helmet was nearly $700.00, I got a Bostrom X11 brand new for $300.00. Same helmet, different graphics. I like close out deals

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Charles Gallant