Of course, look at the actual cost of GH before the mid 80's when Genentech made HGH somewhat more affordable and accessible the the MEDICAL Community. Then look at the cost of hgh after that, it would've been out of the reach of 99.9% of almost all bodybuilders. That cost wasn't even for the a huge amount of GH most guys use. Medical dosing for GH was 1 i.u. per 15kg of bodyweight, 3-4x a week.
Also look at how tightly controlled GH usage was during the 60's - early 80's. Only around 25,000 - 30,000 worldwide were given medical clearance to receive medical treatment worldwide. Worldwide. But we are to believe cadaver GH was following freely?
Also when was the first time you heard about GH being used for bodybuilding? Bodybuilders don't keep secrets, they're like chatty girls. Duchaine, Zumpano, Feliciano, Fitton, etc...... would've mentioned it early on. Granted it take a bit of time maybe a year or two, but the gurus didn't write seriously about GH till the mid 80's.
While GH was on the radar screen in the early 80's, a lot of it was guys trying to get cheap monkey brain extract from Pacifico, or other hare brained schemes.
I'm willing to believe mega dosing, insulin use post Belknap, Trenbolone in the 70's, and all types of steroid related things....... But GH use in the 70's, and most of the 80's doesn't wash.