When Max spent his money in situations like this, it didn't just feel like he was throwing away cash, it felt like he was losing experience points in a game. The problem was, he had no way of knowing exactly how much EXP he was losing with each transaction.
Ever since he made the Vow, his strength had become directly tied to his wealth. But figuring out how strong he used to be before making the Vow, and how much of that strength had shifted, was nearly impossible to gauge.
There hadn't been a drastic increase in his total wealth since then, but overall, there had been a noticeable enhancement in his physical abilities. With the test he had done using ten million, Max had confirmed that there was definitely a change, both upward and downward, depending on whether he gained or lost money.