In threads like these, many people often give the advice to buy a cheap headset, and buy a better one "after a few hundred hours".
I switched from a cheap headset to a Lightspeed 25XL when I had flown about 15 hours. And the difference was very noticeable. The lower noise levels and the higher clarity in the RT traffic made me much less stressed in the cockpit. I felt less exhausted after my lessons and could pick up the RT much more easily.
So maybe it's the opposite, use a great headset to start with, and use a poor one once you become experienced?
I've tried many headsets and I really like the better Lightspeed ones (25XL and up). And in my contact with Lightspeed they've been great.