I think it has all been covered already, and I agree with a lot of the "pro" responses so far. I love oral and vaginal sex, but for me, anal is just another alternative, and it helps keep things interesting. I agree it is still considered sort of taboo, a dirty, nasty act that "nice" girls don't do, so that makes it a little exciting. For most women, anal is relatively untapped territory, so you feel like a bit of trailblazer. It is, of course, tighter, and the sensations and the build to orgasm are a little bit different than the other places. And finally, as mentioned, there is quite a bit of a power and dominance thing going on with it. I am not into domination, per se, but occasionally it is nice to have a woman accede to my desires.
There are plenty of sp's I see who do not offer greek, it is not a "must have". However, when I do a quick review of my favorites over the years, and the sp's who I have seen the most frequently, they have all usually offered greek.
