Your only problem was that you got speakers instead of some professional headphones. Unless you paid $6,000 for your speakers, you'd be better off by far with $150 headphones, especially as you've said you bought a soundcard (ie; you will hear the difference between good headphones and bad if you bought them).

Er, $6000 is kind of overkill for a computer game. Seriously, I've seen professional audio mastering set ups with much less.

My point was that $150 headphones sound better than most speakers aside from top end systems not that people should go buy $6000 speaker systems.
I honestly don't know what you read.

So you did, looking back. Worded slightly ambiguously though. Of course headphones aren't for everybody, and OP didn't say what speakers they were.

My sound setup is reasonable with budget studio monitors at about a tenth of that price and I'd use them over any headphones (for mixing or gaming), except late at night. Of course I'd never recommend spending that cash to play games unless you're totally minted, so the good quality headphone suggestion is probably right on the money.

Apologies for the misunderstanding.

People do have different ears, yes. But a better sound system will always sound better. The differences in people's hearing only applies to high end audio equipment. People who don't know too much about audio like to use that argument, but if you become an audiophile (yes, its a real thing), you'll learn why its a complete fallacy unless applied to top end stuff. The only time different personal preference begins to apply to headphones, for example, is at about the $400 mark. Before that the better ones just are better.
As for bass, yes, you can. With a good soundcard that has an amplifier (mine does), and good mixer software. You can't shake the floor, obviously, but the thing is - the frequencies that are causing that you can't actually hear anyway. The human ear doesn't hear all the range of most subwoofers. There's a reason they're called subwoofers, a true subwoofer is actually silent (because they produce ultra-low frequencies designed to shake the room, and they're very, very uncommon). You can only hear a frequency that is so low, getting the floor shaking will seem bigger but it's not actually going any lower. Headphone drivers can easily manage those frequencies. And you can make good headphones go plenty loud to cause serious hearing damage without damaging them. So volume and frequency are both covered. Shaking a room however, obviously you can't do that, and its completely unnecessary.

As for talking about them being uncomfortable, that's way too much of a generalisation. It entirely depends on the individual model. Quality headphones can be extremely comfortable. Some block out all outside noise, some you can hear everything as if you're not wearing anything.
I always have my headphones on when at my computer, it never bothers me because they're good quality. They are sooooo much more precise than most speakers. ie; when I played competitive FPS, you have to use headphones, because then you can hear exactly where someone is when they're running, to a degree of accuracy that isn't possible with headphones.

You may not have heard what you like from headphones, but I doubt you've heard many quality headphones.
Point being, I don't think you've heard all they have to give, and you shouldn't assume they can't do it... because they certainly can.

...a 4.1ghz dual core and gtx480...

I have a ASUS G73JH also. It has beeen good to me, but I will say it had TONS of issues when they first came out. RMA'd my first one within a week and finally got one that was stable. So I thought anyways.. Had to upgrade the BIOS once ASUS got off their asses and fixed the issue with the 5870M crashing. Hated the GSOD and the VLOD (Grey Screns of Death and Verticale Lines of death). Once that was out of the way though, it's great still use every once in awhile.

Your only problem was that you got speakers instead of some professional headphones. Unless you paid $6,000 for your speakers, you'd be better off by far with $150 headphones, especially as you've said you bought a soundcard (ie; you will hear the difference between good headphones and bad if you bought them).