Slot machines can be linked in very large groups- not only throughout a city, but throughout the country and across the globe. This is perhaps another major reason why slots are so overwhelmingly popular-they offer monstrous prizes. Machines that are linked build up a progressive prize. They do this by taking a small percentage of the winnings of every machine in its network and adding it to a major jackpot. With this type of system, jackpots can be enormous. In fact, some networked or linked slot groups in Las Vegas automatically reset at a prize of $10,000,000 after the last jackpot has been won. However, it should be noted that linked slots offer a horribly reduced return rate, and greatly increased odds- usually in the tens of millions to one. Playing linked slots like Megabucks can be a lot of fun, but will not return much on your playing investment. Therefore, the person who is primarily seeking a huge prize should use progressive, linked slots, whereas a player simply looking to entertain themselves should stick to traditional slots.