Kosetx,
I bought that exact unit last month. Like you, I have limited need for it, but the price was right. I generally do all my welding with my MIG machine. But there are times I need the extra depth when welding 1/4 plate or thicker. The DC option comes in handy at these times.
Keep in mind that due to the AMP ratings on this unit you will be wanting to use 3/32 rods MAX. Not always readily available at your local supply as they generally deal in the larger sticks.
The duty cycle is low at the higher amperages, but keeping to the thinner sticks will help.
All in all I believe I made a good purchase. I used an additional 20% off (any single item) coupon. Making my cost $ 103 plus the governments levy. I can drop that at dinner with the wife. /forums/images/graemlins/smile.gif
If I find myself leaning toward the stick welding more often, I will cross the longevity issue at that time...but then it would be easier to justify the higher priced units also.
On a side note - and no high-jacking intended...
The 30 AMP Plasma Cutter at Harbor Freight comes highly recommended by my brother...a DIYer of the nth degree when it comes to cutting and welding of auto frames and the like. He is more than pleased although he suggests getting the extended warranty as the low price affords that luxury. His first unit arrived dead in the box and they exchanged it without question. Have the local store match the online price, apply the 20% coupon and you can get that puppy for $415.00 before extended warranty. It's on my list of wants. /forums/images/graemlins/laugh.gif