I can only achieve this when I manually masturbate.
Sure, sometimes it's a hassle. It can take me up to 45 minutes to get there. I need porn or a partner telling me a dirty story. My hand and wrist get sore. However, the sensations are different, and generally more satisfying, than a vibrator orgasm.
A vibrator orgasm is like a sudden geyser, powerful but out of control, and over in an instant. A manual orgasm is like a lingering river headed to a beautiful waterfall. It starts slowly, picks up the pace as the fall approaches, and then lets me indulge in the falling sensation and the warm waters below, where I can swim for a while.
All of these metaphors are really just to show you that it's worth exploring how using your hands feels for you. Maybe it's not as good, and you prefer a vibrator. That's fine. At least you know, right?
But What About the Zombie Apocalypse?
Seriously. Think about it. Civilization falls. There's no more electricity. You spend your days running, scavenging and defending yourself from brain-hungry zombies. Don't you want to just lie down and take the edge off at the end of the day with a good orgasm?
I know I would.
Sadly, your Magic Wand won't work anymore. What the hell are you going to do? Thankfully, you've learned how to use your fingers, and you can get yourself off without the help of electricity.
OK. Maybe that's unlikely, but self-sufficiency is a skill worth nurturing. If you don't do for personal growth or self exploration, do it for the orgasms.