Who needs cryptographic cards?

Webmasters
Secure connections to your web serveurs using SSH/SCP or graphical interfaces like Putty and WinSCP. Create virtual networks and make secure backups. Protect your private RSA keys, which will never leave the smart card. Sign emails and connect to secure pages using SSL. Stop using passwords to improve security. Protect sensible customer data using cryptography.

System administrators
Create Single-Sign-On (SSO) networks. Control user rights and stop using passwords. Protect data from thieves or illegal users. Make secure backups. Create VPNs between distant sites.

Daily users
Make sure you are the only person connecting to your computer. Stop using passwords. Connect to other computers using VPNs. Crypt discs and backups to protect sensible data. Sign emails. Connect to secure web pages.

And much more ...