Electric Fence Reels

When purchasing an electric fence reel consideration should be given to future use and deployment, will it be used with temporary fences of varying lengths ?
A reel holds considerably less polytape than it does polywire, guideline manufacturers lengths are listed for the individual reels.
An electric fence mini reel will hold approx 250 mts of polywire a larger reel holds approx 1000 mts of polywire.