In many, MOST, cases you truly do get what you pay for in tripod purchases. Bogen/Manfrotto, Miller and other name brands might seem quite a bit steep in price per pound, but when you consider the stability, the balance, the sometimes ultralight rigs made of exotic materials that somehow find the sweet spot between lightness for transporting and run-and-gun floor-to-shoulder-and-reposition in less than 10 seconds moves and overall maximum stability, and DECADES of useful, low-maintenance life, it is GREAT economics to spend between $1K and even $3K for a quality, name brand product.
I invested nearly $1K into a set of Bogen sticks, spreader, dolly wheel spreader, and heavy duty head more than a decade ago, and that puppy is STILL our main support for shooting. Second unit tripods in the $100 to $250 range have come and gone; emergency purchases for 2nd or 3rd camera units picked up at Ritz Cameras or other retail stores on the way to last-minute gigs have come and gone over the years - NONE of them alive and in working order today.
I invested in a heavy-duty monopod with Bogen branded fluid mini-head and foot brace that ran me close to $500. It too has seen heavy, constant work. Although it is a good bit heavier than traditional monopod units and can get heavier during a run-and-gun event, I am glad I spent the bucks because that unit too has outlasted a host of lower-priced, off-brand products.
You really do, most of the time in tripods anyway, get what you pay for.