I hear ya re disposable stuff. That's why I periodically put an edge on my Stanley utility blade

. That knife stays in my shop and is the go to for nuking cardboard boxes. It is quite easy to sharpen (but not with a file which just bounces off the blade due to hardness) and takes on a wicked edge, at least plenty wicked enough to scare those boxes apart.
I don't "need" this Milwaukee knife but the fact that is has a locking long shaft screwdriver and therefore making the tool multi use, and the fact it has serious rave reviews at many different spots online, it seems like it could be fun and useful.
Though I have a love of knives, I can't see EDC one that consists of simply a blade. The screwdriver , for example, on my victorianox one handed trekker comes in handy daily for prying, digging, scraping etc