There are three reasons that I can think of to keep your computer wired these days:

First, you may be wanting to avoid as many EMFs as possible

Second, IYHO (In Your Humble Opinion) it's obviously more secure

Third, you want the speed. you might need a faster network.

In Hardwired, I detail how you can keep your computer wired, in this wireless age. It might also be possible to keep your cellphone hardwired.

Rating G; Reading Level Easy 5th Grade; Longest Word: Electromagnetic