Sometimes it can be a good thing buying a salvaged car, My brother's EG hatch is a salvage vehicle taht he bought for under 2000, now when i say 2000, I mean this car is mint, you can see some of th spots on the inside of the car where it ws repaired, but the rear quarters were both replaced and there is not 1 spec of rust, which may not seem like alot to some people, but if you live in new york like I do, it is VERY hard to find a rust free honda, especially an EG or older, the only problem that we have with the car is that the reverse lights don't work, never have and probably never will, not that Im not able to fix them it's just who cares.
It really all depends on what you plan to do with the car, like was said above there is really no trade in or retail value for a salvaged vehicle, but private party sales you can make your money back.
The reason you see salvaged cars on ebay all hopped up is to ususally try to offset the fact that the car is salvaged, it was bought for very cheap and then alot of look good parts were thrown on to make the value higher for "just the right person"
Think of it in the aspect of a right hand drive car that was once a left hand car, for example an EG6, you can literally buy a front end wrecked civic from a junkyard or a private sale with a clean or salvage title, and then buy a right hand drive clip, cut it all up and weld it together, all in all you just spent around 4000 to build the car and can probably sell it for 7-8 depending on how good it all looks TO THE RIGHT PERSON, and they wont care if it's salvage or not because everythign is straight and of course it's right hand drive.
I dunno, I guess I'm on the fence about this, there are pros and cons, and like was said above it's a honda, very easy to work on and replace parts. Unlike some cars that will have problems forever or cost a fortune to fix correctly.