I cannot imagine myself in a successful relationship without decent sex, I've tasted the near-perfect match mentally, emotionally and physically more than once. That said, I am a realist, I have truly loved and I felt that love again without explosive sex, maybe I could compromise with meeting in the middle physically, maybe.
My response to Moxie's post:
I'm 30 and sex is very important to me.
However, relationship sex is different to casual/fling sex.
If one has a casual relationship, merely based on attraction and hooking up,then the sex should be great or good and improving with each meet.
Relationship sex is different, with a boyfriend the sex usually gets better with intimacy in a way that would rarely happens with a casual relationship.
When I like someone enough to commit to them, I look for good sex, effort and enthusiasm and a willing to try each other's fantasies.
My level of compromise seems to be diminishing with age, I have had a relationship where for a year (not even great) sex was on offer once a week and we were practically living together at the time and that now is a no go for me. And in contrast with someone for four years and sex was still at least every other day and great.
If sex tapers naturally throughout a relationship, I would prefer it fade from ten times a week to five, than from five times a week to two...