The limit on number of syncing devices has me exploring other options - I'm an oldschool Dropbox user, I got most of my storage space with referrals years ago, and I consume about 6GB on the free plan. I don't need 2TB. I don't really even want 2TB, and I'm certainly not going to pay over $100 a year for 2TB. I'd pay some smaller amount of money for the ability to sync additional devices without storage that I'll never use nor need, but nobody does a-la-cart pricing.
Apple will sell me 50GB on iCloud for $0.99 a month. That fits my needs much better, I just need to go through the exercise of making sure their web interface isn't horrible on my one remaining Linux system.
In fairness to Dropbox, I'm probably not the kind of user they want at this point. They got their mileage out of my early referrals, and I've never paid them a cent.