Personally, I'm somewhat of a purist when it comes to collecting anything - knives, guns, pens etc. I'll only get the real thing. Knockoffs are so unsatisfying because much of the enjoyment is in knowing that you have something practical - not just a fancy paperweight.
Also, all the stuff I have gets "used" - because that's what they're made for. The way I figure it - If I die tomorrow someone who gets my stuff will use it. It's a waste to have if you don't use it.
Here are a few of my knives.
Benchmade Osborne - teflon coated
Benchmade Auto Presidio (automatically deploying) - teflon coated
Benchmade mini-AFCK (I have 2 - one with with a blade of ATS-34 and the other one made of M2 high-speed tool steel - extremely tough metal.) Both teflon coated:
Emerson CQC-7B-BTS - teflon coated
Cold Steel Recon Tanto - very tough with good strong spine - very practical - epoxy coated:
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*OK. Now that I think about it I DO have one blade that I don't use. It wouldn't be practical anyway. It's a limited edition United Cutlery Anduril Sword (the sword from Lord of the Rings) - The limited edition (#1792 of 5000) was released just prior to the release of "Return of the King" in the movie theaters. Luckily I spotted them online because the price and demand shot up after the movie. It is numbered with a signed certificate by the production designer of the blades in the movie. I bought it for less than $200 and, last I checked, folks were selling on eBay for over $600. Now I can't even find them on eBay but I'm still holding on to mine. They later made an "unlimited" version which didn't have all the detailing or the 24kt gold plated fittings or rune detailing.
This one I'm keeping in the box for now.