I'm new to this so feel free to delete this post if its not appropriate.
I have about 20 years of digital photographs saved (2004-now) and my method of storing them has been to use an external HDD until it fills up in a few years and buy a larger capacity one. Rinse/repeat. I'm currently using a 16TB WD elements external drive and it will be filled up in about 2 years by my estimate. Would it make sense to continue this method and buy a 20TB drive, or should i get a HDD dock and add new drives to expand my capacity?
I do edit photos on occasion, but for the most part its just storage. I'm not a professional photographer, these are just my personal photos.
I also use a cloud backup as well for redundancy, which is purely for storage/archive.
Any help would be appreciated, thanks.