Strider knives are worth so much because that's what people are willing to pay for them. They may be expensive, but they are still in demand. Took me quite some time to find a SnG DGG with digicam blade in stock. They cost $500, but they go as soon as they are up. If you think they aren't worth the price and that you can find a blade that is equally as strong for a lot cheaper (and you can), then by all means, don't buy the Strider, there are hundreds of other people who will be happy to take it.
You can get a ZT 0300 which is a Strider collab for half the price of a production Strider and it's just as durable. It's not a Strider though. You can buy a Walmart jacket and it'll keep you just as warm as a Gucci, but it's no Gucci.
If you look at the price of something as only the sum of its parts, then you're going to be disappointed. Do you think those $100 Nike runners you bought last week have $100 worth of materials? Nope. They have about 70 cents worth of fabric and rubber with an Asian/South American labor force making 10 cents a day putting them together. Yet you have no problem paying $100 for them because they're Nikes. Why? Probably because Nike is a reputable brand name. They are associated with quality products used by professional athletes. They spent millions on R&D for those sneakers to make sure they don't give you calluses, are light as possible while still keeping their strength, and giving you a great warranty and a brand name people respect.
I'm not trying to take anything from Strider with that comparison. Unlike Nike, they are american made and use more expensive materials. They make great tough knives and they have one of the best warranties in the knife business. Your knife develop blade play? Broken tip? Rusted pivot? No problem! Send it in to Strider, you just have to pay the shipping.