If you are getting parts catcher, I would say do not get high pressure coolant. Worth $6000? You would need to either save in tooling or increase income on the machine by $4.62 per day to pay off in 5 years. This would not include additional maintenance or repairs needed for the high pressure system. What I have also seen on machines with high pressure systems, the sump volume and coolant return are inadequate except in ideal cutting conditions. Let a screen get blocked, it starts sucking air and foaming the coolant.