I was just stating what I observed, not saying I would prefer this development. I would love to stay in 4:3 ratio while doing "desktop work" (ie. writing, spreadsheets, presentations, image processing, even regular web browsing), but if I get a 19" 4:3 display (even or manage to find one in the first place), or a 21" 16:10 display at the same price as a 24" 16:9 (just checked the prices of a local retailer), I would still choose the biggest one as it has essentially the same amount of vertical pixels showing (typical example resolutions would be 1280*1024, 1650*1050 or maybe 1920*1200, and 1920*1080, respectively) but has still elbowroom for widescreen images.
Probably for this reason, the IT stores/departments I have recently visited have only had 16:9 models on display for consumers. (Another self-fulfilling prophecy: demand lowers prices and since only one type of panel is commonly supplied, Joe Public does not know to demand anything else...) Hopefully, the 2.40:1 ratio found in some very rare (as of now) TV sets (to fit the movie "standard" Cinemascope aka ratio between 2.35:1 and 2.4:1) is never adopted in the computer industry...