One thing i certainly look and shop for on ebay are movies.  Movies that are sealed, and not previously previewed.  9 out of 10 times when i have purchased a movie (VHS or DVD) that has already been opened there is something wrong.  Always ask if it is sealed, NEW and NEVER opened.  New with tags on this kind of sale won't necessarily be posted or necessary.  Ask if your movie is sealed, if it has been opened.  Once you receive a movie that is scratched up, you know it is of no good use.  I have recently purchased the DVD's Stuart Little & Stuart Little 2.  They were both new and sealed.  The only non-benefit is that most Sellers ship it at book/dvd rate which usually takes a minimal of 9-20 days to receive.