Read that again Joe it says the material is cheaper and weaker not the unit. Meaning this I start with 1 foot of square tubing priced at $1.25 and build a k member with say 10 feet that comes out to $12.50 in material used and depending on wall thickness has some inherent flex in the tubing itself based on the design of the material. Now I start with a 1 3/4 round tube chrome moly priced at $6.00 a foot that same tubing now cost $60.00 for the same 10 feet and it's inherent strength is almost 4x that of the square tubing.
