Its been nearly 10 years now that I've been running my thermodynamic. It still works like the day I bought it, and all I've ever done is buy consumables for it.
I think miller and thermodynamic share some parts, or at least that was the pitch to me when I bought that machine way back when.
Just a heads up, the dryer the air, the better your consumables will last Vince. And at 10$ and up per consumable, its worth going through the trouble to dry the air pre plasma.