For a long time I used a quantaray that was just under $100. I bought it for my wife as she was into photography long before I was. So, I wasn't sure either why you should spend more on one. After all, it's just 3 pieces of metal/aluminum/alloy with adjustable legs right? After I got into the hobby, I found the limitations of it. Like others said, it wasn't that sturdy, it would droop and wouldn't stay locked and the controls were right in the way. I used cash from photo jobs to upgrade my gear, and after getting a few nice lenses and a better digital body, the tripod was the next to be upgraded. I researched a bit and decided on a Manfroto/bogen 190XBPro and a 322RC2 pistol grip. Man, what a difference. It's rock solid and the pistol grip ball head is so much better than the cheap plastic pan/tilt head of the sub $100 Qauntaray. I could see and feel the difference immediately. Like everything else, the law of diminishing returns seems to apply to tripods. I think there is a significant difference between this Manfroto setup and those of lesser price/quality, however, I can't imagine spending much more than $300 on a tripod that will last for many many years. The only exception to that is if you are looking for sturdy but lightweight like a carbon fiber model. You could just prop your camera up on a stack of phonebooks if you want, but like others have said, if you spend $1-5k on a body and an equal amount on a lens, you are foolish to prop it up on a $30 tripod that is more suited for a point/shoot camera.