"William Sommer****** is Wrong Again"

Wrong.


Suppose a 100W-equivalent CFL that draws 25W lasts only 1000 hours. In
that
time you save 75kWh. At 10 cents per kWh, that's $7.50 -- three times the
cost of the bulb.

** A CLF that genuinely replaces a 100W bulb cost at lot more than $2.50
where I live.

Well, it doesn't where I live. So who's wrong?
Even if the bulb cost $5, you'd still be ahead.