I agree that 8gb is low, but you can work around it as long as you are willing. Moving your music to your SD card is an option, or using a cloud service instead (pandora or xbox music, etc). Also Windows 10, which may possibly release this Fall, is also supposed to free up some space requirements, so System doesn't take up 4gb like it does now, and that may give you back maybe 500mb-1gb. I don't have a ton of apps installed on my 635, yet I'm using 1.7gb of space for apps and their files. Because I don't have pictures and videos going to my SD card, those are taking up about 1gb currently. That only leaves me with about 400mb of breathing space.