...hmmm I'm pretty new sooo I probably have no idea, but Ima gonna throw something out there. Maybe I'll get lucky and be one of the best recommendations
for music it depends on what you listen to
Sony Studio Monitor DJ Headphones- these are exactly 150, I've listened to em a couple times and Imo they're fairly solid overall.
Check out Sennheiser, it doesn't take an expert to know they do well in many i guess "genres"
...the whole games thing throws me off....I'd go with speakers not headphones for them\
But like I said, I'm pretty new and learning a lot and listening to as many headphones as possible sooooo my opinion probably won't be your best bet