While it may seem that all bristle dartboards are created equally, there can be some major differences. The most obvious difference is what is used as the segment divider Round wire, Diamond wire or Blade wire.
Round wire is your most economical choice. Great for the beginner or casual recreational player. The wire is pinned to the board and does take up some precious scoring area. Due to the rounded nature of the wire, there is an increased chance of bounce out if the dart hits the wire. They are still a solidly built board.
The Diamond wire is still pinned to the board, but it is thinner than the round wire. The angle on the Diamond wire helps direct the dart into the board and you will suffer fewer bounce-outs.
Blade wire dartboards have the blade inserted into the board itself and the wires are extremely thin. This works to prevent bounce-outs and gives you more area to your board because of the lack of staples. While this board is in the higher price range, this will definitely help out your score!