Ok this helps. I sometimes look at the big numbers, not always incremental. I also have an aversion to long term payment plans. So if I can, I'd rather pay for this in the "short term" rather than saving/paying over the next 10 years.
* yachi: in what situations does 529 not help the tax situation? I was looking at lump sum prepaid, which it appears I can deduct up to the max yearly and divide over multiple years tax returns.
My kids are grade school, so I have 10 years until they hit college.
I feel like now is imperative to sock money into retirement, especially with my late start, which is why I'm hesitant to deviate funds to college savings. But I know I have the means to do some of both.
* Laura33 that helps and I ran the numbers a few ways, which gives me some comfort. It looks like they also have the option to start with one plan and convert to another. So I can plan for the CC option a year from now, while still meeting my retirement goals. And then a year from now, if it's all still looking good, I could move those up to the University option and be done with this altogether.