Yes, I completely agree with you. Girls are so full of themselves that sometimes a guy genuinely compliments them and they give nothing but attitude. I've seen it happen right in front of my eyes and it's a shame. But, you know what? Guys have made that girl into thinking she's all that. She's obvioulsy used to getting all the attention from guys because of her beauty (which seems to attract 90% of guys attention). So for her, getting compliments is something that happens so often, she no longer appreciates it.
On the other hand, if (some) guys would look beyond beauty and compliment average looking girls such as myself, the guy would be much appreciated and acknowledged.
Nice girls do exist. But they are not the pretty girls (some) guys keep falling for.