I've been looking at these and similar products, and you're entirely right. Why bother with vacs of any kind? Blowers are the way to go. They're more powerful, and you don't have to keep cleaning them. I'll need to take keyboards and stuff outside and wear a mask, but who cares? I also understand that 20+ year-old board chow is great for gardens. :?)
So, thanks for bringing me up to speed on this! – A.