I wouldn't say a lot. You do have some consumables. It's all about how ya use it. Cutting 3/8 thick eats tips faster than cutting 10ga for example. I pretty much only by drag tips so I can set the torch right on what I'm cutting and drag it along. I'm sure if I used a different tip and cut with a standoff things would last longer. I probably cut 40' of 10ga with one tip.I have never used one. My experience with welders and cutting equipment was on the farm with a Sears stick welder (still have and afraid to turn it on) and a cutting torch in the 70's.
Do you have to buy a lot of replacement stuffies to keep it goin?