Shadow745 - I think there’s always room for technological improvement. Example, the Niche Zero was ground breaking as it was one of the first single dose, “zero retention” electric grinders at an affordable price. Before the Niche, it was Monolith or Versalab and I don’t know what else only.
But ultimately, the burrs shape (flat and conical) have been around for donkey’s years. Manufacturers can use different geometry, different speed, different angles, all the nonsense, but ultimately it’s the same old burr. Similar story goes for the E61 group, which (now) gets flow control, pressure gauge, temp. gauge…. And HX machines becoming more clever. But ultimately, it’s still the same old E61 or even the same old LSM or Fiorenzato groups.
Part of me wants to think that boilers, heat up times, temperature stability and heavy groups should be a thing of the past. Sometimes I find hard to believe that 60 years later - if not longer - we are still using the same old technology, with very little change. And that’s one of the reasons I - even though I actually do not own one - like the Decent machine. No boilers, no crazy lump of metal group. Instead, technology for getting water mixed and delivered at the right temperature.
The usual manufacturers (ECM, Lelit, La Marzocco, etc) all innovate based on relatively old technology. Presumably it’s a less risky business model.