Because modems are end-device certified, users can plug them into their design and put them on the network immediately. Developers would pay more for a modem than they would a module or the chipset, but when taking into consideration all of the costs associated with design and certification, using a modem is often the best option for new designs. This is especially true if they are unsure about the market adoption that will be realized, or if getting a product released quickly can help the developer increase their market share.