I just downloaded the most recent iPhoto, which took the better part of a gig, and reflected that the original Adobe Illustrator, representing the very high end of Mac consumer software a quarter of a century ago, shipped on one or maybe two 800K floppies.
Still, I can purchase today "enough storage for your entire OS, apps, and most of the files you'd create in a couple of years," as an external HD for way less than $700.
cordially,