Not really... Software nowadays, be it games, Microsoft Office, photo editing, all push out updates/fixes/upgrades over the internet. Most software is now obtained via download, not physical disc. Even games that are bought on DVD immediately download updates when installed.
Also, you would not be able to access email or this message board (though you could do these on a phone with data). Technically, you could go to somewhere with free wifi whenever you wanted to download something or periodically to get updates for your existing software. Another option is a data dongle, to pay per use, but they are slow and could work out more expensive than having wifi in your home.