<p>The OP’s concern was the validity of what they have heard regarding excellent fin-aid packages Princeton offers. </p>
<p>Princeton like many other top tier schools are very generous with aid and unlike some others do not penalize for the enormous home equity many parents have amassed recently. Other schools such as Amherst and Williams might even match or beat Princeton by affording lower income students an opportunity at a paid in full with no loan education.
Harvard and Yale have recently entered this elite group with similar deals but remember that Princeton paved the way. </p>
<p>It should also be said the OP wasn’t asking about yield percentages but rather financial aid packages.</p>