Backup or snapshot

Hi all,

I would like your oppinions/experiences

Which is better - a backup or a snapshot ?

(and on an amazon server - which is cheaper)

Traditionally I would go with a backup - but had a few problems, so I tried a snapshot.

Both allow you to start a new server with the data

The backup however is the only one that can be restored to the original server.

But then with a snapshot you can just destroy the original server and start a new one from the snapshot.

So I am thinking is there any reason I should use a backup, and not just regularly schedule snapshots.

Any thoughts appreciated.