Thanks for the feedback. The only "case studies" I found were limited to really small potatoes - like "every $ spent generated $5 of revenue" - but the totals were risible - something that didn't justify the time, even at a fraction of the minimum wage (not to mention that revenue != profit. If your profit margin was < 20%, you were losing money - and even at 20%, what's the point of changing 4 quarters for a dollar?)

One site boasted of a 4,400% net return. Sounds good, until you look at what it was. $30 ad spend to sell a dog for $1,400. Not exactly something you can repeat on a daily basis. Twice a year if you're lucky (and the dog's not). And no follow-up on how much it cost to sell the next dog (a year later, despite updates to other stats in the "study", that figure wasn't - so it's safe to guess that it was a one-shot affair, and that any money spent after just inflated the original cost).

Which reminds me, what about his buddy-buddy Oral "Give me $6 million or God is going to call me home" Roberts? ./me checks ... DEAD! Oh well, one down, a million more hucksters to go.

. When braking on dry or wet roads your stopping distance will be about the same as with conventional brakes.
You should allow for a longer stopping distance with ABS than for conventional brakes when driving on gravel, slush, and snow. This is because the rotating tire will stay on top of this low traction road surface covering, and effectively "float" on this boundary layer.
A non ABS braked vehicle can lock its tires and create a snow plow effect in front of the tires which helps slow the vehicle. These locked tires can often find more traction below this boundary layer.

Snow under pressure sticks to ice better than frozen rubber does. You want the tire to stop rotating so it can build up a 1/2 layer of snow.

slippery ice covered roads already are quite covered by the computer in your existing car.

No, they're not. There's nothing quite like the OMG feeling of the stupid ABS system completely unlocking all 4 wheels as you approach a red light.

Leave him alone

If he wanted to be left alone, all he had to do was SHUT UP! Same as if Shuttlewirth doesn't want to be criticized, he should stop making stupid announcements that are a joke - like his latest brainfart about Ubuntu "out-innovating" Apple and Microsoft.

"As personal analytics develops, itâ(TM)s going to give us a whole new dimension to experiencing our lives."

Here's a clue - if that would "give a whole new dimension to experiencing your life", you need to step away from the keyboard and get a life!.