As a former IT manager, I can't begin to tell you how much of a hassle it is to remove all the freeware, bloatware, malware, and crapware from a new computer. This problem gets worse when you order 5 or 10 computers. It can take a good 30 minutes per computer to remove all the junk the manufacturer puts on.
DELL does it, and I'm sure most others do it, too. It's not right, but what's a consumer to do? You can't even vote with your wallet because all the big guys do it. Answer: buy from the little guy and instruct him not to put junkware on the drive.