Hold off on buying a sword til you start actually training. I see you decided you may come to www.bostoniaido.com
I train there. And it'll be best if you come meet us and speak with our sensei bout Last Legends and whichever other company to buy swords from. I'm not sure what his take on Last Legend is at the moment and it would be a waste of money if you order one and he doesn't approve of it.
Also about the 3 mekugi pin deal, there's so much more to keeping the blade in the handle, how it's properly done and etc.
First you're just looking at the marketing explainations of the swords of the reputable companies you are looking at. That does not teach what is actually necessary in a sword. You should research Japanese swords through books, the procedures done to make Japanese swords, and all the little details that make a good sword. Of course Last Legend, Bugei and etc. will say the positive sides to what is so great about their swords. But they are not teaching in their advertisement everything you need to know.
If you saw a car commercial that told you their cars are built with 5 wheels instead of the usual 4 that most companies make, does that make that car better? Is it excessive?
The ideal way to know is to know more about cars and the kind of cars that car companies make out there before making your purchase and not base it on their advertisement.
So don't jump to conclusions yet. I'm not trying to put Last Legends down. But don't base what you read in a company's advertisement to help you determine what sword is better for you. You study bout swords and become sword educated then you know what you should buy. You study about cars so you become car educated to know what is better car for you to buy. You should never rely on just advertisement.
The kind of car you buy should fit the type of driving you do.
The kind of sword you buy should fit they type of sword training you do. You must first join a sword school and from there the best type of sword to fit your training will be more obvious.
I look foward to meeting you when you come by www.bostoniaido.com
for a visit. We can definitely talk more bout swords then.