German RepRap is selling new 1mm hot end nozzle which can cut in half the printing time. The trade-off is rougher surface finish and more visible layers. So, the target audience is someone who needs more speed and less detail. The ideal setup would be some kind of dual extruder with extra fine nozzle for details and larger diameter nozzle for infills.
It's compatible with X400, the X400 CE and PRotos V2, but could probably adapted for other extruders.
It is priced ad 18,99 euro.
Product page:
https://shop.germanreprap.com/en/product?info=160