Welcome to the forum. The best way to learn a lot of this is to look around this community forum and you will learn tons. To address the idea of cost... I bought my SFNO several years ago now and spent many times what I had ever spent on a fixed blade prior to that. It was going to be THE LAST KNIFE I EVER BOUGHT. After receiving it and using it I found Busse knives to be the BEST VALUE of any knife I had purchased because of the quality, toughness, guarantee and eventually the community here which is a great group of people. I have bought MANY Busse's since then without thinking twice.
I would recommend you buy whatever appeals to you and you can always sell it for what you got it for if it isn't to your taste.
I live in the Portland, Oregon area so if you were nearby I could show you what I have so you can see what you are getting into
Edited to add...
All Busse knives use INFI steel. A proprietary steel and heat treat process ONLY available through Busse that produces what many of us believe is the best balance of toughness, edge holding, corrosion resistance and sor forth of any steel available. Can't get it anywhere else and Jerry has claimed that the steel itself is quite expensive relative to others.
Busse spares no cost in the process of making these knives when it comes to materials, heat treat, cryo, finishing and customer service. Top notch all around
There are other reasons that add up dollars and cents but these are a couple basic ones. I honestly don't even think about these things any more
Oh, and one more thing... It's pronounced Bus E (this comes up a lot

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