A new study from a Russian university finds that LEGO sets can be a lucrative investment, rising in value by 11 percent every year, a faster and better rate of return than gold, stocks, bonds, and wine. Victoria Dobrynskaya, associate professor of finance at Higher School of Economics University and author of the research, joined Cheddar to discuss the findings. "In general, most sets tend to appreciate after they're retired, after you cannot find them in LEGO stores," she said. "They tend to appreciate on the secondary market after a couple of years."