Sorry to say but I do not agree with this statement, the only way to get big win or max win is all about LUCK.
Spending money as much as possible is not good suggestion as well, we should always spend money as much as we can afford to lose only.
Spending too much money is also not a guarantee that we will hit big win or max win.
There is nothing wrong to play slot everyday as long as we know how to limit ourselves both in case of time and money.
Playing 1 or 2 times a week is better indeed but it does not mean that we will get better result by this style, I mean we can still lose all the time even if we do play 1-2 times a week.