Does a nice mic make a difference??

Well so long story short i built my pc not to long ago and didnthave the budget for a gaming headset. well since i record music i have a sure sm58 which is a high quality mic ran through a yamahamg10x soundboard and a audio interface. im using all xlr cables ($100 each mogami) and everyone says my mic quality on games is amazing. my question is is it worth it to get a nice gaming headset and will it be any better than my professional mic set up now??