Why? When doing schematic and layout for weeks / months / years and moving your hand all the time, you really need a good mouse. Otherwise, sooner or later, your hand is going to hurt.
Altium has a lot of free templates for different form factors. For example, if you need to design a PCIE card, you don’t have to create it from scratch. You can download it and it will save you a lot of time. Here is the link to the Altium design content website: http://designcontent.live.altium.com/