+1 Norman, that's been my experience too. Most of the tape recordings and dups I made from those days and under normal (indoor) storage conditions seem to have held up well. Even though my Pioneer 909 was freshened up a few years back I can't imagine there isn't some level tape of degradation over time. It always blew me away just how much of my instruments fidelity was lost in post.
Last I looked the cost of those prerecorded 10 inch reels was over a grand?
Last I looked the cost of those prerecorded 10 inch reels was over a grand?