You almost wonder why it hadn't happened sooner. If you think about it, normally folks modify a bike (or moto or car) from stock in order to make it faster or more "high performance," but for some time, so many recreational cyclists have had to modify their stock bikes to make them easier to ride, which is sort of backwards. Yeah, this development could lead to an uptick on compact crankset listings on eBay, but maybe the reason we don't see so many standard cranksets from folks who've "downgraded" is because they hold onto them thinking they might develop into them, or move somewhere flatter. I have one sitting in a box ready to go back on the Casati one of these days.....