The OT right now is a pure classic. Nothing comes close to it YET in terms of breadth, usefulness, and timelessness. There are obviously some flaws and effects will always start to feel like a certain time period, but this thing is legit. Just as you see people doing real work on classic mpcs, you will continue to see this.
I once thought the Force was coming for it but Akai messed that up so much it’s comical. Maybe one day.
I am weary of the new devices with touch screens as their primary mechanism for depth. Without a doubt the interface let’s you do things that would be so hard on a traditional device. And they open up the UX so that the depth of the machine is more accessible to people. But this also adds a layer between the user and the device. For many aspects, you cannot make the machine an extension of yourself because it requires full operator attention to use. As a horrific straw man, imagine a drummer who needed to focus his attention and eyes directly on the kick drum to play it well. It would significantly limit his ability to do many things at once.
I think even Akai (as dense as they are) knows this. The latest round of mpcs (one and live mkii) have more buttons and more shortcuts. And still while the the classic mpcs continue to get use today, the touch screen ones will fade away with each subsequent generation. The touch screen gimmick and system architecture will necessitate that (along with the greed of the corporation).
These newer devices are literally general purpose computers that have been neutered. They try to hide that from you by doing things like disabling the mouse (while forgetting to disable scroll wheel) or by artificially restricting features like adding an audio interface. These devices want their cake…
This is not to say that the modern devices should be avoided (disclaimer I own an mpc live and would consider a second round on the force or a newer model once they actually complete it) but rather that they won’t have the longevity. They will be trivially outdone by competitors or the greed of Akai. They will fail in ways that are too expensive to fix compared to the latest gimmicks and technology as that’s what is driving them.
So, is the OT worth it? Yeah. It recently got revival in the form of an mkii because people just kept buying it and the parts were no longer easy to get in bulk, not because there were things that needed drastic changing (we did get a few more buttons and shortcuts though). You will continue to see this device on peoples desks and in their shows for a long time coming; it just takes too many additional devices to replace its usefulness.
(Last bit: I own a decent number of other Elektrons that I really enjoy. But I wouldn’t say the above about any other Elektron gear. They are all replaceable and in niches that others continue to build and sell in. People will keep using many of them for a long time, like the heat, DN, and the other classic boxes, but they won’t retain the same level of success.)