There are many ways to keep records. It is true that paper will last a long time. I have had computers since the 80's and have kept records on them too. In the early days, I saved the info on floppy disks. As the technology improved so did my storage methods. Now I use rewritable CD's to store information, but you can use the "cloud" now and store information off site. As far as software is concerned, it is a bane of new operating systems and more powerful computers. The software companies could update their programs to be compatible with new computers, but then they could not make more money. They purposely write new software to force you to buy upgrades, to keep the money flowing in and to pay the bills. I am old fashion in many ways and prefer the old ways of doing things. I have load data right in the plastic cartridge cases. When i get low on ammo, I refer to the load label and load up some more. When I develop a load for a new gun, I tear down the left overs and reuse the componets. I then load up several boxes of the new load and when I get low, refer to the label as to what to load. I say do what you fell comfortable with, be it log books, computer programs, spread sheet or the cloud. I would suggest using more than one method, Justin Case.
Good Shooting and Good Luck