@Arcane & mulpsmebeauty:
I've always just considered that as a blanket statement for "IPS has better colours, whereas TN has washed out colors". Basically meaning that if IPS is good enough for colour critical work, then there's no need to worry about colour reproduction in the slightest. Whereas with TN, you have been warned that the colours are not that spectacular, and you've got only yourself to blame, if you still find them disappointing.
And speaking of "professional":
TN is indeed the de facto solution among professional gamers. But that's because there is some serious money involved, and they need every last important millisecond, even if it means that they'll have to compromise on every other aspect.
Unfortunately, 99% of us are NOT professional gamers. We don't play for money, we play for enjoyment. TN's superiority in pixel response times is not as critical as the vocal minority make it out to be, for AVERAGE gamers. For us mortals, the benefits of IPS are more than adequate to compensate for the slightly lower pixel response times. By going with TN, you gain 5%, but lose 25%. Don't get me wrong: for those who value the 5%, go ahead. But for the masses, the 25% is usually more appealing.
And sure, some of the IPS owners just want to "justify" their purchase. But I have no doubt that the same is happening among TN's ranks, as well.
Nevertheless, as the OP said it's mainly for gaming, maybe he should indeed try TN. Then he'll know whether the compromises are worth it for him, or not. Who knows, maybe it is a better option for him. But like said earlier, he's only got himself to blame, if he is still disappointed.