I agree with one of the answers below--quality laminate and bamboo are just about the same cost and bamboo holds its value longer and better than laminate.
Don't be afraid to paint! Go for it! The 70s are not known for beautiful woodwork--chances are it's plain, simple and not an asset if it's dark.Homeowners are looking for homes that feel like they have been maintained AND UPDATED. It will probably be the single biggest change to make to your home (besides dated light fixtures and kitchens and baths) to make your home feel light, bright and move-in ready.Good Luck!