I had a good tripod that was several years old, but I lost the quick release plate, so it was kind of useless. I bought a 7D and wanted to take some night shots, which required a tripod. I didn't want to spend too much and happened to be at Walmart and bought a Targus tripod. I thought the same as you. After using it for awhile, I realized it was a cheap piece of sheets.
1. It doesn't have a smooth pan. I also use it for my video camcorder and when I pan from left to right or visa versa, it's rather sticky. So you see this choppy movement.
2. The part where the camera rests is not level. It does have a tilt option, but in order to make sure the camera is level, I have to raise the camera at a tilt and hope that the cameras weight would bring it down to the perfect level. Unfortunately, it was VERY difficult to keep it level.
I got fed it up with it, so I bought a Vanguard Alta + 264AP tripod
, which has a very smooth pan. It feels like liquid. Also when I place the camera on there, the camera is level, without any fidgeting.
Another thing I chose the tripod can support up to 11 pounds, which I know I will not exceed. I would dare not even use a heavy lens, like a 70-200 IS II on the 7D on the Targus tripod.