Another possibility is that he likes trolling us. He likes playing games with his opponents. That's one reason he made that comment in Kenya.
And that Obama likes to keep stuff about himself secret. Maybe there's something in there that he wants to hide, and it's easier to just hide everything.
The idea that he was spending millions on this is one of those unconfirmed internet rumors.
Colleges, hospitals, and government agencies are supposed to keep records secret, and you don't need big money to make them do so.
His official, long form birth records were SEALED. His Occidental College records were SEALED. His Columbia College records were SEALED. His Harvard College records were SEALED. His College thesis – SEALED. His Harvard Law Review articles – SEALED. His Indonesian adoption records – SEALED. His passport file – SEALED. His medical records – Unavailable His baptism records – Unavailable His papers from his service in the Illinois legislature – Unavailable His Illinois State Bar Association records – Unavailable
How much of your data is available online? Most candidates hide that stuff if they possibly can. McCain's class standing at Annapolis was public record. Kerry's grades were in the military record that he released.
Bush's grades were illegally leaked by someone at Yale. Hillary's thesis should have been made available earlier, but the school came up with a special rule keeping it secret for years. Her grades, though, still aren't available.
Obama's medical records were released. The one anonymous note Obama wrote for the law review has been known about for years, and you could find it in the hardcopy of the journal.
Governments should not be allowed to do this if it allows Article II to be violated.
Also, state governments should not have the ability to ignore Article II requirements for allowing a candidate on ballot.
No proof, no name on ballot.