I will probably keep my 360 for a long time. I don't like the decision of mandatory installs. I DO love the One as my media center though. Right now, that's what I use it for. --- Check it out: http://www.gamefaqs.com/boards/gentopic.php?board=2000325
Yes they do. Game assets load much faster from the hard drive than they do from the disc. --- "Immigrants. That's all they do, you know. Just driving around, listening to raps, shooting all the jobs." - Malory Archer GT: Bessy67
I think the reasoning that installs are mandatory is for two basic reasons. First is that the hard drive is faster, second is that Game developers can make games knowing it will be this way and they can take advantage of that fact.
Devs having to account for users who did not install their games in the last gen meant developing for the lowest common denominator ( consoles running software off the game disc). I welcome this change, I always installed my games last gen anyways.