Kijanki, I'm not having a cow- its pretty apparent you jumped in without reading the rest of this thread:
The original question was "But, why don't they just copy the magnetic tape to other magnetic tapes and sell us those?"
I've tried to explain inconvenience of using R2R - nothing else. I don't have anything against analog but limited amount of available recordings made me concentrate on CD/computer playback. As for storing tapes in the attic - it is possibly the worst place to keep magnetic tapes since tapes are affected by high temperatures the most followed by temperature changes.
Ampex 1/2" might be nice sounding but it was in 50s. Servicing or repairing would be difficult today. Most people used 1/4" tapes running at 7 1/2 inch/s (half of the minimum studio speed). Prerecorded tapes were available but recorded with Dolby B (that was garbage). Dolby C and S (not to mention SR) or DBX never got to prerecorded tapes (at least I haven't seen them). Newer technologies like Akai HX-PRO (servo on the Bias) extending frequency range of the tape came to Compact Cassette machines when R2R was practically phased out. Again, where do you get analog recordings from?