I think Spyderco is one of those brands of knives that ignites passions of the lovers of them and also the folks that dislike them. This is an enviable position for any knife builder to occupy, IMO. It means that your knives will get a look from most buyers and that is really all you can hope for. Some will select one of the Spyderco models, some will select a model built by one of the other fine manufacturers out there. The beauty of it is that there are so many great choices available, and honestly, most of them will provide great service and performance to their owners.
I have only one Spyderco (Para 2), and it is truly an excellent knife (it will not be my last). The ergonomics are fantastic and the knife fits me very well. It's a joy to use and I love its well thought out design, including the distinctive deployment hole in the blade!! Knife people know Spyderco and while some may not particularly care for their unusual looks, they do respect their high reputation amongst knife users.
Having said that, I also own fine knives made by Buck, Kershaw, CRKT, ZT, Svord, Opinel, Camillus and others. I carry them all for EDC and enjoy the variety of using such nice knives.
A Spyderco belongs in any collection of EDC knives due to the commitment level this company has made to providing tools that are well made and deliver great performance. They constantly try to improve their knives, expand their selection of blades and actually listen to their customers. They've earned their place in the knife world as a company that truly wants to supply high quality tools to their customers.
I wish more companies operated this way, and I'm not just talking about knife manufacturers!