The guy at that forum wrote:
"That said, I can't afford LTO. I archive my stuff on external hard drives, and copy it over to the next latest and greatest drive every several (~5) years. With hard drive capacity continuing to increase (at virtually no higher price), this is a viable method for the mid-term."
Given that the cost of storage is minimal – a hundred hours of SD or HD footage fit on a 1TB drive that costs around $160, (That's a fast, G-Drive), why would you use magnetic tape? Clone or back-up the drives every 5-10 years, depending on usage. If you are getting to be an old fart, perhaps begin discussions with a film or university archive to handle your footage after you die- with stipulations for tape back-up or whatever.
To me the real problem is how to organize it. I'd like to have a workflow so that, say, 100 hours on a drive would also be mirrored (with BITC) to a private youtube account – each tape divided into 6 10-minute sections – so that other people – researchers, collaborators – anywhere in the world could be roped in to log, translate, and work on editing sequences.
If you have historic and valuable footage, you might be able to have a university buy the collection library.