I DO keep them on file. I've got several years' worth. I'm talking about the ones I never got a chance to back up because they disappeared.
Or do you mean I should set up a script to dynamically download my logs every two seconds or every time there's a change? (Not sure you're even allowed to do that on shared hosting. Access permissions.) That kinda defeats the point of having them on the server for a minimum of three days, doesn't it?
Well, that's the tricky bit. All our site files and databases got moved of course-- but the logs are in a different physical location. They're just aliased from your userspace; it's not where they really live. The odd thing is that the backups from my previous server move are still there. So I can see who visited my site for the time period leading up to 5 August 2011, but not the day before yesterday. Now that's goofy