Shane,

We have had the MTS for a while, but they are getting added features so it is worth the wait. But, I have used the IMIGs since day one, have a 200, 205P and 250P. I would never trade them just to add TIG, but me that is extra work. So for me, I have two TIGs with tanks and 3 MIG with tanks. So it is all what works for you. But the old units are fantastic as well.