I don't know how many they buy or build, but Fly rods Spinning rods, casting rods, offshore, inshore, etc. etc. and the many models in each category, I think I am going to be very very conservative as I will be with the cost!!!
Lets say they buy for 100,000 rods a year at minimum,,,,, so if they pay 1/3 rd of what custom rod builders do, 50 cents a ring, ( my builder pay's over $1.35 per ring for the best cork flor grade he can get and buys 1000 at a time) they average probably 10" on a full cork rod,,,,grip and for grip,,,, that takes 20 rings, this isn't counting gluing reaming and turning and assembling,,,,,all required on top of buying it. Granted they use trim pieces, (as do I where I can on custom rods) that are cheaper even on the best factory rods. so lets say just in material it cost 15 pieces X .50 that's $7.50 a rod if they build 100,000 rods a year it cost the $750,000.00 just for handles, if they can buy other materials and I can for 1/3rd that price that is a savings of $500,000.00 if it was only $1.00 a rod cheaper which I am positive it is more than that, they would still save $100,000.00 a year or one million in 10 years,, I assure you that you need to look and do some checking and reading on prices and availability of premium cork that isn't full of filler like most rods that you are referring to use. Just the rings for my handle and forgrip was over $20.00, that is just cork rings, then my builder will work his magic on them and I get to pay for that, but it will be nicer than the best factory grip, however I doubt my builder can get the quality of cork St. Croix uses in there Extreme and Elite lines, Fly rods or conventional!!!
I don't know, but I do know how they build them and what they use for the best. I will assure the cork on cheap rods is going to have the same kind of cork, and I will assure you it wont be near the cost of cork on rods such as St Croix uses on Legend elite's or Legend Extreme's, I can tell the difference in my Avids and them, they really get cheaper on the imported rods. They buy rings usually 1 1/4" diameter and 1/2" thick, this is pretty standard. But I can buy rings that need filler much like a 100 or 130 rod even, for less than 1/3 what I pay for the best I can get, and I it doesn't mater if I want 1 of each kind or 1 million of each kind!! Most experienced rod builders know the very but of a rod is the least preferred place to start chopping weight, they would either have extremely tip heavy rods, overly long handles, or very heavy components building them ahead of the blank. Making a expensive rod cost wise,,,,a cheap rod performance wise!!
I do know a 4" long 1 1/4" dia. peice of cork with a 1/4" hole in it that will have to be reamed larger and make it even lighter,,,,,weighs less than 1/10th of an oz!!!! This is an example of what they want you to think!!! These are all things that keep me building different rods ofter having dozens,,,, oh so much goes into a rod that make the difference between a great rod and one that looks and feels good, Function is everything and it's quest is endless!!!!!