Value bets provide a stable income to the player at a distance, while the rules of bookmakers are not violated. The client simply puts on outcomes in the line, which he believes are underestimated, so in the long term they will bring in a plus in any case. The value gives a mathematical advantage over the bookmakers.
Why has the bookmaker business been successful for hundreds of years? It’s quite clear: while most gamblers accept rules dictated by bookmakers (even considering the fact that each coefficient already bears the margin, and specialists calculate the probable outcome), professional gamblers architect their own unique methods for systematic gaining through betting. One of them is value bets strategy — following it, they bet only on outcomes with overvalued coefficients, or make value bets.