Don't buy DeWalt. The build quality has been in the toilet for years.
You have to buy the right ones. Dewalt now has several grades, though they don't advertize it. The good ones are in the combo packs that are $600-$1000+. That is where you will find the better motors, gearboxes, batteries and chucks. The cheap stuff is sold one at a time though depot, lowes, etc where the price is aimed at a consumer instead of a contractor.
If you want the good stuff, you need to pay for it. If you want almost as good, but won't survive a fall off a roof, you can buy the regular ones.
<--- has about $8k in dewalt stuff from 9.6v to 24v. Heck, one of my sawzalls was a grand by itself, and it has survived since '99 when I got it. Paid for itself 5 times over by not breaking on the tough stuff. Saw a brick in half? no problem. Saw a house in half? You may need a 2nd battery pack and a demo blade. It was actually designed for fire service use such as cutting cars apart. A pillars may as well be cheese. If I remember correctly, it would go though 2 A, 2 b and 2 C pillars in about 100 seconds. Basically you can remove the roof of a car in under 2 minutes.
Like I said, get the good stuff if you want it to outlast you. If you are a regular guy doing regular things, you don't need the good stuff. The ok stuff will last forever on small stuff that doesn't involve daily use for years. The $50 drill master kit is fine for you.
I should also say I have used everything under the sun. Makita, Millwalkee, dewalt, husky, craftsman, drill master, chicago electric, and other inexpensive stuff. I would sit here and write a review of each, but I have better things to do. like sleep. So I will just sum it up in no particular order.
High end (Daily use): Makita, Millwalkee, Dewalt, Hitachi
Medium end (2-3 times a month use): husky, craftsman, rockwell, panasonic, ryobi, porter cable
Lower middle end (1 time a month): black and decker, chicago electric, skill (sorry, their drills stink), Kawasaki
low end (once or twice a year): powersmith, drill master, and nearly every house brand I have ever tried.
Sure, some folks might disagree with me on a few, but I have literly owned and used a hundred or 2, so I have a great sample size.
I only miss one tool. A Millwalkee 18v sawzall. Not the hatchet, I am talking about the first 18v sawzall ever made that most people could actually buy. It had a battery pack that weighed a ton, and the huge d-ring was always in the way. It was the older version of this one. I swear, I could have cut the earth in 2 with that. :cries;. When I find the guy who took it, they will PAY!