Look at it this way. You but the Kuhmos and aren't terribly impressed with them. The tread also looks cheesy. Now for the next 30,000 miles you can wonder what it would be like if I had gotten the good stuff. So you drive harder, patch-out, etc. trying to wear them out, while further revealing their weaknesses. Maybe the tread has gotten really loud by now. You're cursing and pounding the steering wheel in anger wondering why you listened to all those cheapskates on the internet.....
Now don'tcha wish you had spent the extra 200 bucks?