I pay them for the TOTP authentication alone, so that I don't have to never ever use google authenticator ever again, but it also feels good to be able to support such an awesome project, even if it's only a little.

I pay them for the family plan. Being able to share items with my wife and kids (particularly joint accounts) is extremely useful, and they do it without creating two classes of passwords (like LastPass, my previous vault).

BTW, the paid accounts provide TOTP code storage, more comprehensive password health reports, emergency vault access for others, hardware key support, someone to call with problems[0], and encrypted file sending.[0]

[0] https://bitwarden.com/pricing/