I know it's a bit different, but I currently have a Hypertherm Powermax 1250. I've cut up tons and tons of steel with it and have gone through about $20 in consumables. I do have two in-line dryers on my air supply to ensure clean and dry air. I used it to cut up a bunch of railroad track with it this spring. I thought for sure that I'd go through some tips doing that, but even after a couple dozen cuts through the old dirty track I am still using the same tip.
I never owned one, but I know two friends who bought the CE cutters from Horrible Freight and both took them back. I know both of them took classes together at a local tech college and used the colleges' Miller and Hypertherm cutters. Maybe that is why they were so displeased with the CE stuff? Either way, both guys said that they'd buy quality equipment or do without. As I'm told, a O/A torch is far less expensive and does a far better job than the cheap ones. Based on that, unless I just had to cut up some stainless, I'd stick with a torch rather than go with a setup that isn't so good.