Why rock a KTM vs a GPX?
My buddy kept his GPX parked at my shop for several years. They exist, for sure, but they aren't on the same level as the bikes they are trying to rip off. If you "need" a shiny, new bike to be happy, ok... maybe they're cheaper then. But he paid more for that GPX than my used KTM cost, and the KTM works every time. Aside from cost and reliability...that was one top heavy bike with really weird feeling controls. Took like 3-4" of travel to engage the rear brake. Clutch lever had an oddball shape/geometry to it and made it not fun to use. It moved in a really weird arc that gave it a herky jerky feel.
Ever see how to service Fast Ace forks? The internals don't come out the top like normal forks. You have to clamp the stanchions in a vice ( that's gonna require a proper soft V block ) and you have to torch the thread locked axle lugs off the legs because the guts come out the bottom. And they have grub screws retaining them. Think about that for a minute.
Grub screws through Chinese cast aluminum bedding in to Chinese threads. Those deformed threads get drug through those Chinese castings ...you know how that ends up. You either don't service the forks, or you wear out the axle lugs fucking around with that fuckery and end up throwing them away.
They get some love on the Internet, but when you get these things in your hands you see quickly that's these aren't bikes built by anyone who gives a damn about building a bike. They just need to look the part long enough to get you to write a check then they disafuckingpear leaving you holding the bag. Funky hand/foot controls might sound petulant, but it's one of those things that's a constant pain in your ass mile after mile after mile.
You could approach them with the KLR/DR Approach. Great cheap bikes! Especially after I replaced the shock, swapped the forks, put on new bars and upgraded the brake master cylinders, rotors and pads. I've seen folks drop $2-3k upgrading KLR's. I've got whole ass bikes I didn't pay $2k for 😁
I'd take a BMW with a engine contracted from China over a thoroughbred Cheena bike every time. Who cares that the engine construction was outsourced to a Chinese factory? You're buying a known thing, and if it eats itself alive you've got a known brand to stand behind it. Have a Chinese bike Amazon'd to your door and see how many fucks they give about you two days later.
Cheap Chinese bikes are false economy, especially after the fanboys have been "vouching" for them, and now they're not even that cheap anymore. I've seen how that vouching goes firsthand. My buddy's GPX set in my shop for three years. He rode it 2 or 3 times. He would show up with some internet hack that's supposed to fix something, fuck around with for a while, finally give up and just ride the thing in it's still shitty state, or hop on a spare KTM, Yamaha, whatever was available. But three years later online..."I've been riding my GPX for three years and it never broke down on me once!"
That's not really accurate though, is it? You've not run a whole tank of fuel through it.