I personally don't like the taste of cum, however, I will swallow for a guy if he wants me to. I don't see the big deal about guys making it feel as though they are better appreciated. I think they should be lucky if a woman is happy to go down on them... Just my opinion.
I was once with a guy for a reallyyyy long time and he couldn't make me orgasm, not even once, so I guess it made me feel like, why should he be rewarded when I couldn't be in return?