I remember when I first heard of dropbox, I just started college and all my peers started sharing their space race challenge links to get 25gb free, must be ~8 years ago. Service was great for exchanging notes and other studying related material. By then 25gb felt like a lot. However fast forward two years, the 25gb free plan ran out if you didn't convert to a pro plan, which I don't think anyone I knew did, because by then the university caught on and provided their own free NAS up to 100GB. Also if you purchased an office 365 student license you got 1TB free for a couple years. I used those services a lot during college, but there was never a need for me to go for any pro plan. Haven't used dropbox since I graduated several years ago.

I've always thought dropbox must make their revenue in B2B because spending hundreds of dollars for cloud for storage a year as an individual never made sense to me.