Well, this has certain advantages, but only for those who have truly made betting an integral part of their lives. I'm not so passionate about it that I can also make up some tables. Although it may make sense for betting, but only for a long time period.
This is if the person entirely based on gambling for a living and realistically, looking upon making tables to keep tracking record could be a lot of task in my opinion except such person has taken gambling as a full time job without looking for source of money. This type could easily leads to gambling addiction since all attention is being focused on gambling.
I think it is very difficult to be able to generate consistent winnings in gambling of course it would be very unlikely to make gambling a main source of income and in terms of keeping track of how much we have spent on gambling is indeed important so that we can know how much we have spent money on gambling and if it is still within a reasonable amount of course it is not a problem but when we have spent too much money on gambling of course this will have a bad impact on ourselves and also the people around us of course this is not desired by anyone.