I probably do 100+ tubing cuts per year and use a Ridgid pipe cutter with heavy duty SS capable cutting wheels. This is the plumbing grade Ridgid, from a plumbing supply house, not the cheap stuff from Home Depot. I get about 20-25 cuts per wheel.
It's not just about being professional it also saves my customers money. I can cut a 1" .065 wall SS tube in about 30-45 seconds with no clean up & no filing of rough edges etc.. I can also make cuts precisely and repeatably to measured insert depth.Professionals always have the right tool for every job. If they need it once they might rent or borrow it, if they need it more often they buy it. Finesse may be secondary when the poop hits the fan, but a craftsman should execute each job with recognizable pride, and get the cuts right, it's their personal trademark - IMHO