Alyus :
I'd like to get high end headphones but that would be just a waste of money because I'm not a audiophile. They would easily rip me off with persuasions.
Don't listen to any sound, if you're not an audiophile there's no real reason to.
There's the difference between open/closed headphones where you trade sound directionality for sound accuracy (open headphones better recreate where sound is happening, closed better for frequency accuracy). That's a category that you might be able to notice even without a discerning ear.
Otherwise, just put on each pair of headphones (muted) and wiggle your head, stand there for a minute or so just shifting your head around. Don't let any techno-babble sway your decision, you're just in it for comfortable headphones, not features. If a salesperson tries to help you, it would probably be advised for you to wave them off until you've made some initial passes and found ones that are the most comfy.