I wish I had more money available to jump on these deals. To be fair I'm not exactly strapped for storage but until I get my PS4 usage up I'm not buying extra stuff for that.
I still have never completely filled the 1TB internal drive I put in my PS4 at launch so I don't feel the need to buy one.
Even with the Xbox One automatically downloading every single Games With Gold title when I grab them from the website every month I still have lots of space available on my external 2TB drive there too. I do periodically uninstall the GwG titles I know I have zero interest in but the default is that they are all installed.