I can count the number of times on one hand I've needed an optical drive in the last year.
In the last five years? Probably twenty times or so. I backup on the internet and use external hard drives. I stream content or view it off of an external. If I need to transfer files to someone, I do so using the plethora of online services, wireless networking, or using a thumbdrive.
I'm so very GLAD that Apple has the balls to do this.
"I've gotta say, though -- it's a wee bit difficult to shove 50GB worth of Blu-ray goodness into a North Carolina sky, and I'm saying that while residing just a few hours to the right."
I bought a PS3 years ago for Blu-ray, but I never ended up buying one for movies because the convenience of streaming and mail-in-DVDs made it easier to save space around the apartment.