I was Thinking about this while Looking at Blocks today.

Lifetime  
A van gets 250k miles at 2 mins a mile a 2k rpm Equals a billion times.

A hooker works 250 days a year and sees 8 guys a day each guy goes up and down or thrush her 10k times before cumming and she does this for 50 years it equals a Billion times Cost of a van is 60 cents a mile which works 0.03 a stroke pussy cost $100 min for 10k which works to more than a penny a stroke.
Which one is better any thoughts. Both can kill with If you don't use protection like rubbers belts and bags.

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It seems that the van is more efficient machine, to the extent that we can also say that "the hooker's" gyrations can be described in mechanical terms, however without some imagination you can't deliver pizza from the back door of a hooker.

Nor can you easily get to Omaha on a hooker.

Epicurus would dismiss the utilitarian measurement and instead opt for the hooker as a delightful way of avoiding pain and experiencing pleasure, no doubt, but he never drove a 4-wheel-drive Chevy Express Cargo Van over the Rockies.

So all this means only that efficiency isn't always fun, but maybe more fun than you'd think without trying it. No offense meant.

Anyway, the secret is to keep all parts well lubricated and aligned, and always use high octane anti-knock fuel.

After a lot of "long hard" thought, I'll go with the pussy.
When the day comes that there is a billion dollar industry surrounding just WATCHING pistons do their thing (and from multiple camera angles to boot) then perhaps I'll reconsider!

Even at fastest I'm assuming my speed is roughly 3 strokes a second, or perhaps 180 strokes a minute.  Your 10k value means I'd have to hammer that pace for 55 minutes in a row.  I'd stroke out (heart) before that though!  Or more likely orgasm, go limp, go to sleep....

But 10k strokes might explain why some girls don't want to see you though, as I could foresee friction burns before your hour was up.

Hooker math was bad. You clearly have too much time (and weed) on your hands.

The combustion process of a 4 cycle engine equals: suck, squeeze, burn, blow. I.E. intake, compression, combustion, exhaust.

Now a pussy stroke equals: intake=BBBJ , compression=penetration, combustion=ejaculation, exhaust= sleepy sleepy time.

My 4.3 liter has been with me for 15 years and never complained. I've only been seeing my favorite hooker for 2 years and can already see signs that the wheels are falling off.