Prior to the 2012 armour makeover update, infinity boots were popular footwear among players, since they looked quite stylish and showed off wealth.
Unlike the robes, infinity boots and gloves cannot be coloured at an elemental altar.
A dragonbone upgrade kit could be combined with infinity boots to make a pair of dragonbone mage boots. This is a cosmetic enhancement and does not change the stats in any way.
Ever since the release of ragefire boots, the price of infinity boots have slightly decreased due to the ragefire boots having increased stat bonuses compared to the infinity boots. The release of Evolution of Combat also led to a major decrease in their price.