advantage :

(1) if one player dead... he will get revival in a moment ...
so he don't leave game at once
but the base destoryed.. this player lose game and leave


(2) each player only need to protect his Main Base by himself.
so each player has each his closed monster paths (Region).

other players can't interference other players paths or steal money


(3) if one players clear his monster too slowly...
after every Some Time interval.. the next monster wave will continue to show !!
other player don't need to wait only one player Wasting Time.

Because he need to protect his Main Base by himself

His Base is His Life !!
His Base is His Life !!
His Base is His Life !!