Ok, I know we've talked about this before
@AnyOtherRay , but if you still have any interest in M40x, they just dropped on Massdrop.
On Amazon, you can get them with a mic for $100, straight from Audio Technica if you want a mic. Otherwise, their on Massdrop for $90... it's really not a good deal, but ever dollar counts.
Also, are you interested in having a mic attached to your headset? I can take a couple pictures of my $5 mic setup, and the quality is actually pretty good, not even considering the price point. Otherwise, if you want a desktop mic, and can expand your budget, then I would recommend the Samson Meteorite again. There are other good ones out there, but they can get pricey, especially if your just chatting online. For something like Youtube recording or streaming, then I'd definitely recommend expanding your budget some more. I mean, I use the $5 mic for YT and streaming, and it sounds fine, but if you want to get into it then definitely set aside some money for quality.