Zend certified PHP/Magento developer

10 USD wireless mouse VS 150 USB mouse battery life [closed]

How is it possible that a 150 USD mouse has a battery lifespan of 70 hours (and you need to re-charge, plug and re-plug cable) and on a cheap 10 USD you can replace the battery after 18 months, that is no battery replacement for that much and no need to wait for recharging or stay with any cable to re-charge.