Investors can potentially achieve better returns by incorporating small cap value into their portfolios, as historical data suggests returns of over 13% compared to around 10% for the S&P over the last 80 years. While the recent performance of small cap value has been lackluster, the long-term perspective remains crucial, and even small allocations can lead to significant gains over time. The ongoing debate about this strategy highlights the importance of data-driven decision-making in investing.