A 1965 Los Angeles Dodgers World Series program played at Dodger Stadium is worth about $40. - $50. in excellent - near/mint condition. A 1965 Minnesota Twins World Series program played at Metropolitan Stadium is worth about $75.- $100. As with all collectibles, condition is the most important factor of all providing that the item is authentic. With programs/scorecards the slightest flaws will bring the price down significantly. An exceptional mint condition scorecard could sell for more.
Common flaws would be staining, foxing (yellowing), fading, creases, rips, loose pages, cracked binding, and writing on the cover. Un-scored programs will generally sell at a higher price than a scored program but sometimes it doesn't effect value. The over all condition, and how well the cover displays will.
The value on a "scored" program as opposed to a un-scored program can vary depending on the game, and collectors preference. In general I would say an un-scored program will sell at a higher price. Some collectors do not mind scored programs, or might prefer it scored. A game in note that might sell at a higher price "scored" would be Don Larsens perfect game in the 1956 World Series.
I will leave a link below for more information, and to find the value of baseball programs, magazines, and other vintage baseball publications.