Even though my wife stopped fucking me a decade ago (menopause), she taught me well. You can do other things to keep your partner wet and wild until it's time to pop, then keep her going until you can go again. A good marathon session starts with the hands and fingers, moves to the mouth and tongue, and after delivering several healthy orgasms without penetration, she's more than willing to let you savor the VJJ as long as possible. Sometimes, when I am especially randy, I'll repeat the cycle, switching techniques to keep her guessing. By the time I get back to my own climax, hours have passed. Even the young ones are impressed.
The only cash spent is for travel expenses, unless it's an escort. Escort fees are usually a fraction of their hourly rate, say $2-4k for the week, including sex at mutually agreed upon intervals. Escorts are not as enthusiastic, however. Always on the clock to some extent. Civilians and spa girls are totally cool with multiple orgasms. Most guys are definitely too selfish. Once a woman knows you take her pleasure seriously, her entire attitude about you changes.
I avoid the blue pill (V), it gives me a runny nose, flushing and other ill effects. The orange pill (C) is more predictable and feels natural like the days of my youth. When I'm mongering, or going on a vacation, I'll take one C every day in the morning before meals. Never more than one a day, and sometimes every other day, if my partner is really fun to be around. By the end of the week, I'm the Man of Steel. Limited orgasms, but I can usually go until she asks/demands/begs me to stop. Or until the rug burns...