Tapes can have long term issues in storage, as the tape reel winds will eventually start to bleed over magnetic signals from one wind to the next.

In analog world, they call it tape hiss. In digital world, with good error correction, it can last a long time, but is still ultimately prone to data corruption, eventually…

I recommend a video surveillance rated multi terabyte hard drive, they’re designed to run 24/7. I have two 4TB Seagate Skyhawks.