Does Dell Computers have a Two Year limit or something?

My Inspiron M5010 is the second Dell laptop I've owned and they both started falling apart around the 2 year mark. What's worse is that I've had two different laptops now and BOTH of them had screen issues. I spent so much time and money the first time replacing the screen, taking it to one shop or another just to be told in the end that it was the motherboard which would cost as much as a new laptop. So I opted for a new laptop. Two years later I'm facing this garbage again. At first it was just that the screen would go dark every once in a while. I didn't even notice really. When the screen wouldn't come back up after hibernating I'd just reboot the hard way and everything would be fine. Then it started having a dark screen when I first turned it on. Another reboot fixed it at first but now it's getting to the point where it doesn't work all the time. I might have to do it 4 or 5 times opening and closing the lid a few times or taking out the battery. Since I've been down this road before I know what will come next. The screen will stay dark more often than it doesn't and I'll have to start hooking it up to an external monitor until finally I can't stand it anymore since that completely defeats the point of having a laptop and I'll have to cough up hundred dollars to replace this piece of junk.

I really can't believe this happened twice. I'm kicking myself for buying a second Dell because this is exactly what happened before. Fool me twice, shame on me. Well, you won't get me a third time. This will be the last Dell I buy. Thanks for the headache.