Well for me right from the outset I wanted a mchine that is future proof for me (Hence why these guys are pushing so hard ;) ) so that way i can cut plastics,woods and do so ali work in the future and have a machine capable for it all. I was first introduced into CNC at school and was quickly dissapointed with the machines they had... werent very good. Then I got to start using a Roland MDX-540 as part of a young engineers thing.. that machine was better and could chew through plastics...struggled with carbon fiber and did aluminium at 400mm/min, not sure if it could go quicker or the company didnt want to push it but it was annoying to watch frankly.