I think the reason there really aren't that many "Yes! I got into my local state school!" threads is because many people (except for Californians) use their state school as a backup school. As a result, they're largely expecting to get into their local state school and don't really find it much of a surprise when they get their big admissions envelope in the mail. However, schools like Columbia, Harvard, Yale, Cornell, Penn, etc are reach schools for everyone (even if you have really high stats)...so people usually enter a euphoric state (similar to prolonged orgasm I'd imagine) when they find out that they're admitted to these schools and then celebrate by creating a thread or posting in a pre-existing thread.