Right? I mean realistically a 3,000 CFM system should work for the majority of folks in most locations with the way these cars get used. Other than testing, the high speed on my fans has come on all of once or twice, and most folks won't be idling in traffic when it's 110°+out like I was when that happened. I mean, I didn't want to be but it happens with how and where I use my car. Hell most places you'd never have to worry about it. So the ~5k CFM capability of my system pretty much never gets used. It's nice to know it's there though, I don't have to think about what happens if I get stuck in traffic when it's ungodly hot outside or have to park my car in certain conditions.
I think some folks just get caught up on wanting a certain thing or a certain brand, something that looks cool or whatever. I mean, I've been guilty of that a few times myself, buying something I thought "was cool" that turned out to be all hype.
But now I typically care very little about any of that. I don't care if the thing that functions the best is the cheapest no name thing out there or the most expensive brand name thing out there, I just want it to work the best. And yeah, I have a cheap chinese radiator, $150 reproduction OEM Ford Contour fans and a good fan controller and that seems to work better than some really expensive brand name stuff (looking at you Griffin) that costs 3x or more what I have into mine.
And yeah, if the stock fan and a good fan clutch and a shroud work for you that's fine too. The original systems were actually pretty robust, and for a lot of applications that's just fine. I like the efficiency of the electric fans and my car will maintain whatever operating temp window I put in my controller, which makes tuning the thing easier because it's always running the same temperature. And since I commute through 3,500 ft of elevation change and a pretty extreme ambient temperature swing having the engine operating temp under tight control is one less variable to deal with.