The main motivation isn't to reduce size and weight. The main motivation is to squeeze the customers for the last ounce of revenue.

The claim that reparability has to be sacrificed for reduction in size and weight is a lie that they reinforced through repetition. They can achieve it without that sacrifice if they wanted to - but it won't help their perpetual double digit profit growth target.

I think the key for success will be what the device is able to replace hobby-wise. My favorite part of VR is that it allows me to do this with space restrictions, with some cost offsetting.

For example, there's a program on Steam called SynthVR. It lets you create a synthesizer rack with as much space as you can imagine. You don't need a huge room to store all your equipment, you don't need to spend money on each piece of equipment, you just open VR, load a scene or build it from scratch and you've got synths.

From a hobby perspective, I could have spent $1,000 on the Valve Index, or I could have spent it on getting ~5 components for a real synth rack, which I then have to have space in my home for.

That $1,000 for VR however also lets me use Vermillion, a VR oil painting program. I enjoy painting but I'm not the greatest, most of the time it's tiresome to set up the paint space and put it all away, worry about my huge dog knocking everything over... Or I just have my VR space and paint for a little while.

I also use Paradiddle, a VR drumming program. It can connect to live equipment, or just use it with VR. I don't have e-drums so I use this for when I'm feeling like using a drum set and not my pads.

IMO, these are what Apple should be aiming for with this device. AR or VR, the best aspects of it always come down to utilizing empty space to give the user a replacement. Even productivity in VR is enjoyable for me because I am huge on VR overlays (like OVR Toolkit or XS Overlay) where you can be in VR and pop open a floating window of a video, or text guide. Rows and columns of documents floating in space, or pinned to your head/hand. I use my phone in VR this way, by connecting my phone to my computer with SCRCPY and then opening it as a panel in VR.

I haven't kept up with this device too much, and I can't even say that an AR variant of what I described is worth $3,500, but I could see some promising applications for the device. Not to the extent that people would be walking around with them outside though. At least, not until it's a few thousands dollars cheaper, and quite a bit smaller.

Has anyone identified the "killer app" yet?

I still don't see it. I watched a lot of review vids just because it was interesting but I don't see a single thing that the Vision Pro can do that can't be done better with other devices.

The tech and computation required for those avatar things is amazing . It might get much better soon. But even if it does, will it be better than simple FaceTime type video conferences?

It's not clear to me how apple even imagines people using the thing.

More than a "killer app", it has a "killer feature": even though it isn't full AR, it is "Passthrough VR"... with cameras of high enough resolution, that you can use a physical keyboard (VR keyboards stink big time), or your smartphone, without taking it off.

There is nothing more jarring with VR headsets, than having to take it off every time you want to interact with something IRL, even things as simple as taking a sip of water.

disposable item

There will come higher quality, lighter, more efficient versions in the future, but that doesn't make this one "disposable", it's likely to get some support (especially with right to repair legislation) and work well enough for at least the next decade.

PS: INB4 anyone calls me an "Apple fanboy", I wouldn't even consider getting one until it gets jailbroken, rooted, and allows dual booting into whatever alternative OS.

You mean other than porn?

it is also true that devices that are packaged as an integrated unit are less likely to experience issues. Reparability is a means toward an end (long lasting products) but not the only one way to achieve it.

The headphones and battery pack are replaceable. I don't think I'd call this "disposable"

No headset I've seen yet has the capability to effectively replace multiple monitors, which would be the primary use case for working people (likely the biggest market share).