Both wireless and wired networks have their own advantages and disadvantages. You also have the option to choose a mixed network where you opt for a combination of both:

PARAMETER WIRED WIRELESS
Communication Medium Copper, Fiber etc. Radio-wave frequency
Standard IEEE 802.3 802.11 family
Mobility and Roaming Limited Higher
Security High Lower than Wired. Also easy to hack
Speed / Bandwidth High Speed up to 1 Gbps Lower speed up to 50Mbps
Delay Low High
Reliability High Lower than Wired
Flexibility to change Less flexible to changes More flexible configuration
Working principle CSMA/CD, operates by detecting the occurrence of a collision. CSMA/CA , hence reduces possibility of collision be avoiding collision from happening
Interference and Fluctuations vulnerability Very Less High
Installation activity Cumbersome and manpower intensive Less labor intensive and easy
Installation Time Takes longer time to perform Very less deployment time
Dedicated / Shared Connection Dedicated Shared
Installation Cost High Low
Maintenance (Upgrade) cost High Low
Related equipment Router, Switch , Hub Wireless Router, Access Point
Benefits * Greater Speed
* Higher noise immunity
* Highly reliable
* Greater Security
* No Hassles of Cable
* Best for mobile devices
* Greater mobility
* Easy installation and management