I spend most of my knife time here, and so apparently have missed the vast majority of knife marketing. I may well be susceptible, but I don't have any data.
Some people never ever use their knives to pry things. I'm fine with that. Some people never spank their girlfriends, either. I'm fine with that, too. I, on the other hand, have and will continue to use a knife to pry with should I feel it's necessary or desirable depending on the circumstances. For those times, I find I prefer to have a solid, heavy use folder available. I don't like the term "over-built" as I don't care for the pejoritive connotations or logical issues.
Now, I generally carry at least two knives. One is a small, slim knife that is fairly non-knife people friendly. Today it's an Mnandi. It fulfills my requirement for a pocket scalpel. And if it's too large, I have a Ladybug in ZDP-189 on my keychain that is ludicrously sharp, as I know to my own personal horror. Fortunately, I do carry bandaids in my EDC bag.
Still, if you think about it, you ain't gonna get a lot of prying done with a Mnandi. Or a Ladybug, for that matter. Yes, I carry a titanium prybar on my keychain (next to the Ladybug), but it's not sharp. Sometimes you really do need a knife to get to the point where prying would make a difference. So, yeah, I like to carry a tool appropriate to the need. I don't pry with my Leek, but I won't hesistate with my 0561.
Here of late, I've been buying Striders. Which is weird, because when I first started really heavily in knives, I really did not like the way they looked. I did finally break down and buy one, though, just to see if I'd been missing something. I like the SMF. Got an AR coming, now. Still looking for a decent SnG. These are serious heavy use folding knives.
I still like my smaller knives. I have a couple of Leeks, a Wild Turkey, Mnandi, Ripple, etc in the daily rotation for small, absurdly sharp knife. But, I also like my large, heavy use folders for those situations where they are appropriate (not that they aren't also absurdly sharp--they are). Granted, I work in an office these days, at least mostly, but I'm terrified at the thought of being jammed into a stuck elevator with a group of Jehovah's Witnesses, so I feel profound emotional comfort by carrying a knife I know I can use to pry the doors open. YMMV.