Dell :: M1530 6th Or 7th Death

I've had the motherboard in my M1530 replaced 5 or 6 times now, and I just got it back from service where they told me it would get an "updated" or "new version" of motherboard that would not have these issues. My laptop has died on me without me changing out the heat paste, and its died when I did change out the heat paste. It's died overclocked, underclocked and at stock speed. It's been a video card issue every time. Frankly I am completely fed up and very frustrated with dell support and the level of quality of this product.

I really don't want to deal with this anymore, my laptop has been out of commission for a total of maybe a month's worth of days. I didn't pay 2000 dollars for something that breaks every other week. I'm glad they've been good about fixing it, but this is just too far. Does anyone have any idea on what I might say to dell if i wanted my money back or if I wanted to gat a different model of laptop from them as a replacement, because honestly this has cost me far too much time and effort to be worth it in any way.