Speaking of that, be prepared for a whole lot of cheap used cars to hit the market in six to twelve months. These will be flood cars, and Carfax may not tell you that. It can definitely be worth it to pay for a title search service that allows you to plug in a VIN and then returns everything that's ever been attached to that vehicle's title.
You do not want to buy a flood car.
I would avoid salvage titles in almost every situation. You don't know why it was a write-off, you don't know who rebuilt it, and you don't know what kind of job they did.
If you're already into turning wrenches, and it's a "special" car, maybe. If you are buying it from the person or company that did the reconditioning, maybe. But most of the time, the write-offs go to auction, somebody buys them, rebuilds them, sends them right back to auction. Then your local fly-by-night used car lot buys them and sells to unknowing retail customers.