What strategic moves can players make to gain an advantage in Monopoly, particularly in relation to acquiring properties like Marvin Gardens?

Players can gain an advantage in Monopoly by strategically acquiring properties like Marvin Gardens to build a monopoly in a color group. This can increase their chances of earning higher rent from opponents and potentially bankrupting them. Additionally, players can negotiate trades with other players to acquire key properties and strategically build houses and hotels to increase their income.