So, how likely is it that the $45 Atlanta Cutlery blade will snap on the first stroke? Anyone? Because so far it looks
It's more likely to bend than snap. This will almost always be the case with lower priced sword blades.
I'm going to stick my neck out and try to clear up some of the confusion about sword blades. This is my opinion from over 40 years of use and a little less than 10 in making them. It should not be taken as the last word in the matter and is not given as such. There will be many opinions that differ.
The swords were made to fight against other edged weapons but needed a sharp edge because of the weight of the swords. Durnin that time period, heavy swords were common to defeat armor. The Katana was the assault weapon of it's time. Light fast and because of it's keen edge, very effective.
The best swords were folded to allow more flex with the hard blade and they used their famous clay coat again to allow a hard edge with a softer back and some flex. Now the point to this rambleing is that all this was done to allow superior cutting.
A good cut is dependanbt on several things, not the least of which is controlling vibration. Most people think that the convern over vibration is to keep from hurting their hand during compat. It is not, it is to keep the blade from whipping during the cut. Think of taking a hand saw and trying to chop a tree down with it.
One other important cutting feature is the angle of the cut. In other words you want to slice, not chop. The curve aids this although skilled swordsmen have always been able to use straight blades with good results.
Now back to 2003. The less expensive blades may well cut as well as one of high dollar models. One factor is how the bladed is finished out (grip, tsuba, etc) these all help determine how the blade will vibrate. The handle also needs to be contoured correctly so a natural and somewhat loose grip will still line the edge with your swing.
The steel will very likely be softer than the edge steel of a true katana but the entire sword will also be tempered to a more consistant hardness. The softer sword will not vibrate as much as the true Kat and will not hold an edge as well. They balance out and untill the edge dulls, will cut almost as well.
One of my favorite cutting targets are rolled up, wet pieces of carpet. I have "Made in India: swords that will stay cut for cut with my better swords for the first 6 or 7 cuts. Then the harder edge kicks in.
The point to all this is that unless your friend is going into combat or just wants to hang around the local rice bar showing off his magnum sword, a well made but less expensive blade may well work fine for him. If he is serious about the sport, he can have a better one built when he is ready.