Slashdot echoes other news stories about the fact that notebook sales have surpassed desktop sales for the first time in history.
It's been years since I only use laptops. It's so much more practical than desktops that I wonder why people still bother with them at all.
I always advise people to buy a laptop rather than a desktop and they invariably come back to me and say that this was a great advice.
There may be some ergonomic arguments for work stations, but it's easy enough to build one around a laptop too, and in addition it also allows you to take your work with you when you need to go on mission or on an extensive holiday (maybe that later is not such a good idea, though). As for "power", most laptops are now powerful enough to perform reasonably well.
Desktops are an endangered species.