Younger people think Alienware's are "awesomely overpowered", trust me, I made that bad decision once also.
You can literally buy a custom built PC with the same spec for around half the price, give a little. It's just slightly more time consuming. Honestly, if you want to spend a ridiculous amount of money on something that isn't that great and probably won't last you as long, go ahead and buy an Alienware.