If you use a separate computer for all the wallets (BTC, LTC, PPC, etc.) you can simply keep it offline, right? So you NEVER connect(ed) it to the internet. As long you send it to the right address, everything is fine I guess. Is that correct?
A savings-only wallet can be offline/cold/paper and you can keep sending coins to it. A wallet that you regularly spend from needs to be online at the time you spend the coins.
That's not the case if you use Armory (a Bitcoin client).
You can create an offline wallet which never needs to go online, yet you can still spend from it by creating transactions online (online computer with no private keys) and signing those transactions offline (offline computer which holds the private keys).