Hello, in short, yes. The design specifications of tripods (light to carry vs. sturdy/strong) are inherently contradictory and accepted wisdom appears to be that a tripod can be two of light, sturdy or cheap, but not all three.
I have recently bought a fairly cheap tripod (Hahnel Triad 100) for trying out landscape, and although it is fine for me at the moment, I expect I will want to upgrade it at some point in the future as it is not too happy holding my camera and my heavy lens.
The Redsnapper tripods seem to be well recommended on the forums as good value for money.