You being sensitive is on you, Iggy. If you're getting upset about another internet forums user not deeming you a "hardcore gamer" by their own admitted solely personal standards, all the power to you. If you're feeling offended over semantics and terms like "hardcore gamer" and my definition perhaps being different than yours, that's on you, too. I didn't insult anyones mother or blaspheme the Lord Jesus here, lol.
If you are unable to see the differences visually between high end and low end, I'd eat my hat.
As would I if you were not to recognize the differences required in the hardware required between running a game on high settings at 1024x768 vs running a game at 4k (3840x2160) with all settings maxxed, that's just fine too. You can buy 4k monitors off the shelf these days, and I did - and I love it, but it's not for everyone.
It's all about how you prefer to experience things, and what you find suitable. You don't have to spend $5000 to enjoy a game, but there are people that do because they want what they consider the "best of the best" experience for themselves, and because they enjoy tinkering with the powerful hardware along the way. For the next guy down the road, a far lesser machine may keep him completely happy, and that's great - and it's also why the market has a low / mid / high end product for everyone to slide into based on their budget.
Me, I like my gaming experience like this - you may differ.
http://www.youtube.com/watch?v=mUd9o81rdUA