Bottom line is, as with everything else, use the correct tools for the job.
Saw this quote posted by catchlights, but he told the originator should be ortega
Most people want 3 things when looking for tripod.
Cheap, light and sturdy,
But most of the time people will settle for twos..
Light and sturdy tripod won't be cheap (think sturdy and steady CF tripods, usually very expensive and not necessarily very compact)
Cheap and sturdy tripod won't be light (tested and proven aluminum designs, cheap by CF standards and again, usually not very compact)
Cheap and light tripod won't be sturdy (too many multi-section tripods and compact shopping center tripods)
If you decides to risk thousand dollars camera setup kissing the ground should you decides to use the 3rd combination, well, all I can say is, it is you call.