Is there really a shortcoming to be a professional poker player?

As a professional poker player, he or she must have the real ability in poker, and must have paid more than others. While there are some other poker payers who also want to be a professional poker player, but they want the quick way to come to the purposes, so they fully make use of some special and different ways, when they have tried too many ways or tools, but still can’t come to the purpose to be professional poker players, so they continue to try new ways or tools, so like invisible ink marking playing cards, poker contact lenses and poker analyzer come up quickly. When few players using and think them useful in poker games, it means those products will spread quickly and widely, in fact, those products are really popularity among poker players.