i have asked it hell of times but didn't got exact answer.so, is nylon string right for acoustics
Nylon is right for nylon strung guitars, and steel is right for steel strung acoustic guitarsYou cannot mix and match as the bridges and tuners (or machine heads) for each, are unique to the type of strings they require.
A better quality guitar will tend to hold its value or even appreciateYou should play any guitar that you are considering to see if it feels rightDifferent guitars - even of the exact same model - will have different personalitiesDon