There are just so much competition out there with fancier technology and more flexibility.
My children like both EPGY and Khan Academy. I like EPGY's minimalism, since fancy graphics can be a distraction. Textbooks bought by schools tend to be fancier, loaded with color pictures, than the ones homeschoolers buy for themselves. My children have used a text-only arithmetic program I wrote that runs from the Windows command line (looks like MS-DOS). The middle one likes it and has gone on 500-question binges. Maybe aesthetic preferences are also heritable
.
I'd really like EPGY to allow Open Enrollment for courses beyond beginning algebra. The $495 price point for 3 months
http://epgy.stanford.edu/for-parents/epgy-courses/courses will be hard to defend.
