I found what I think is a deal on a 110 plasma cutter.It will cut up to 1/4 and has a bunch of extra tips that comes with it for $350.Does the 110 models use more tips up faster??.What is the down side of the 110 models??.For my limited use I don't think I would ever be cutting anything more than 12 gauge cold steel panels.Anyone know what kind of 110 service I would need to run it.(yeah I know I could look on the unit,but I don't have it in front of me right now.)