Why should bingo players choose to play bingo online? One of the main reasons to play bingo games online is because it is absolutely free to open and maintain. There is no sign-up costs or monthly charges. So any online bingo member can play bingo games for free or they can play bingo for real cash prizes for as long as they desire. If and when players want to play real bingo (playing with and winning real money), then all they need to do is add real money to their bingo account.