How much would the orignal disney movies be?

Like Cinderella, Peter Pan, and alot of others. My sister is in love with disney and has all the old VHS tapes in pretty good condition. I was wondering how much there worth? THanks everyone.|||Not much, If any|||You could probably get a few dollars on ebay, but I find it disturbing that you're willing to sell something your sister loves...sad thing really..