Its worth pointint out that while the sega CD allusion isnt unfair, its horribly outdated. Motion controls are a generational staple now, and both MS and Sony have something I like to call "advertising".
Back in the day of sega CD, there was no such thing as viral marketing, the internet in general (sega channel lol), social networking, internet forums to promote by word of mouth, demo kiosks in malls across the country, etc, etc. I would say the largest difference is just the frame of mind of the public towards video games as well. Extra peripherals and technology are something that parents across the world are familiar with now. Imagine coming up to your mom a month before christmas and asking for a sega CD. She probably doesnt even know what a CD is, let alone what you do with your sega. Fast Forward to 2k10. Ask your mom for a playstation move. She knows what a playstation is
"what is a move?"
"It's like a better wii"
Now she understands. MS has dumptrucks full of money to pour into MTV ads and funding its own television show staring the kinectimals. Sony doesnt so they market it towards the people who already like games. Both will get the word out accordingly, both will make loads of money and, most importantly of all, both will be fun, unlike sega cd.
