Hear Ed from Tech Source try out some of the best microphones you can get for under $50. This video is particularly helpful because he gives examples of the audio with and without background noise removed.
Being able to hear the difference in overall quality even without editing will help you make an informed decision on how to upgrade your home studio.

*video by TechSource

Tonor TN12326: Click here to view on Amazon

Floureon BM-800: Click here to view on Amazon

Neewer NW-800: Click here to view on Amazon

Snowball ICE: Click here to view on Amazon

Hessaneiser Lavalier: Click here to view on Amazon

Recommended Audio Gear:

Focusrite Bundle

Neweer Boom Arm

Pop Filter

Shock Mount

XLR Cable