As much as we bemoan estrogen in our quest for more muscle and lower bodyfat, it really does have it's positives, firm youthful skin for one. I am not looking forward to menopause, which means I'm probably closer than any of you! Along with the drop in estrogen, menopausal women typically see a drop in their other hormones, like testosterone, DHEA, growth hormone (the ones we LIKE!) The whole menopause bit with hot flashes and all doesn't sound like a picnic.
At 38, I haven't seen any signs yet, but it'll happen someday. I plan to do whatever anti-aging therapy I can to keep those good hormones. It's only been very recently that mainstream medicine has even recognized the importance of testosterone in women. All this anti-aging stuff is expensive and experimental, so I'd just as soon put it off as long as possible - but then again I don't want to live a long life, just a good life.