US TIPS seem to be currently yielding between 0.21% and 2.01%: <a href="http://www.bloomberg.com/markets/rates" rel="nofollow">http://www.bloomberg.com/markets/rates</a><p>It doesn't change your point though. They'd have to make &#62;$200k/year to be an interesting investment.<p>And 501(c)3 donations get tax deductions, which is worth at least 15% for most people who can afford these sums. <a href="http://www.givewell.net" rel="nofollow">http://www.givewell.net</a> has a few ideas on efficient donations.