No, a good mouse and keyboard set does not have to be expensive. The price-performance winner with a ribbon from Asus is already available for around 10 euros. Only the Perixx set is better, but it is mainly interesting for ten-finger professionals. If you prefer to travel without a cable, the sets from Microsoft and Lenovo are the best choice...
Hama Cortino Wired Keyboard and Mouse Desktop Kit Soft Touch Keys 1000 DPI - Tastatur
Currently out of stock