My son just strarted college. We did not have the pre pay plan when he was younger but I would never do it. The top notch schools are private not public. Private schools have endowments... My son has a finacial aid package from the school.
$43,000 a year
$4,000 in student loans- lowest rate money you can borrow for anything.
$26,000 University Grant
$13,000 from 529 and parents income.
Here is the kicker. His University Grant would have been more if we had not saved money for him. They take the 529 money, divide by 4 and subtract that amount off the top of the University Grant. We had only a tiny bit in his 529, thank goodness. We are not going to fund our younger twos 529 accounts unless we have made maximum Retirement contributions first. There are no student loans and University grants for retirement.
No matter how much we had in the 529 they would have expected us to pay 12% of our income on top of that money unless we had $170,000 in there (because that equals four years tuition). Otherwise it is 12% of your income/assets (that is an over simplification, my point is that this amount is fixed really, and any savings you have is put in on top of that).
Of course this only works if your child can get accepted to a highly selective well funded private school. We never had any doubt he would. Harvard, MIT, and The University of Rochester all fund 100% of "need" out of endowments. When it comes time to apply for your children that is the information you need. DH went to graduate school for free doing this. I think it is the big secret in the college application world. Some schools only fund 40% of "need" and you have to borrow (parent loans) the rest, others fund 100% of "need" and they "protect" retirement assets (don't use them to figure your ability to pay) but they assume any college savings will be spent on college.
If you do not intend to send your child to a private school (I am not sure why this would be the case) I guess prepaid is a good plan because it would have been $17,000 more for my son to go to a public school (out of state) which offered him their maximum grant of 40% of need.
"need" is a finacial aid term and not really need- it s the number the school comes up with after looking at your income and assets (for private schools) or just income for public (I think). Private schools have their own formulas and they do ask about assets including all college savings plans. They ask additional information beyond what the FAFSA asks. Every time I see advice on paying for school it is based on FAFSA numbers, and how FAFSA treats savings and they never mention Private schools do it another way, I don't know why.
Well I did ramble on forever, didn't I. A good (private) admissions counciler is worth their weight in gold. You should find one by Jr year of HS at the latest. They not only know where the money is and how to get it, but also how to get into the Tier One schools.