Yeah, I gave up on any/all clones long ago. Most are Chinese rubbish electronics that will be lucky to last 5-10 years before they break (not to mention are already "broken" in the sense that they have all kinds of glitches playing games).
I will agree that the original controllers are a huge part of what makes a decent system (most of the time). Most of the replacements and replica controllers tend to be very poorly made (cutting corners for cost reasons), and will not last nearly as long as the originals (possible exception being N64 controllers).
Oh, God, please don't remind me of that monstrosity. The aftermarket replica N64 controllers may last longer but they are COMPLETELY unusable!
I bought one of the replica N64 controllers a couple years ago and Goldeneye is completely unplayable. You can't do any fine adjustment because there is a huge dead-zone and not enough precision even after it starts to move. This is a well-known issue for the GameCube-style aftermarket replacement sticks, but this one was original-style.
It could last a million years and I'd still hate it. I do wonder if putting the stick in a real controller will fix that issue but I don't have much hope that it will transfer after looking at my Retrobit dogbone NES controller.
Speaking of that one, if they bother to tool up and make these as close as they are, why not make the components work double-duty as replica parts for original controllers? Well, even though they replicated the NES dogbone right down to the little posts that the controller cord is supposed to snake through for tension relief, they stupidly made the buttons completely different. This doesn't just mean that the rubber pads or plastic caps won't swap (the Start/Select buttons aren't even rubber), it also means that the PCB has to sit at a different height. Sure, the back shell will fit into a real front shell, but it can't support a real NES controller PCB (plastic supports too short).
Furthermore, I bought my Retrobit dogbone new in the box and immediately noticed that the controller cord was not secured on the inside. I ignored their quality control sticker over one of the screws and took a peek inside: Even though they copied the posts for the cord to snake through, IT DOESN'T USE THEM! No reason AT ALL. The super-thin cord still has a lot of slop coming out of a hole molded for Nintendo's thicker cord, but at least it's not tugging directly on the individual wire soldering points.