Cake stands that are Pillared come in a variety of designs and styles, but they typically employ bases and pillars between each of the cake's tiers. They can be short or tall based on the diameter or width of the cake layers. Despite the current school of though mentioned above, the pillared cake stand is still considered to be one of the most elegant ways that you can display a cake.
These different cake stands can actually be used for any type of event when decorated accordingly, but you need to take three things into consideration: 1) the kind of event you're planning, 2) the kind of cake you're having for the event, and; 3) the 'look' you wish to achieve with your display. Once you figure these out, you will then get a clearer picture of what cake stand you need, and what you can do with it to achieve the look you are aiming for.