RancilioRancilio wrote:Is the vibe machine capable of producing a shot as nice as the rotary machine with the same amount of effort?
Both should be equally capable of producing good espresso.
Also would it be a big deal to ad a rotary pump to a vibe machine in the future?
It wouldn't be a terribly complex job to add an outboarded rotary pump, but you would have to work it out yourself, no "kit" to do so. To fit it in the case, you would have to remove the pourover tank to make the room. To get a new pump/motor that would fit internally would be ~$250+.
If you have desires of having a rotary pump or plumbed machine, what is stopping you from going there now?