Bear with me on this one.
I'm not necessarily suggesting that the intro to Hurrah!'s 'Sweet Sanity' is the best intro ever. The Smiths' 'This Charming Man' and Stone Roses' 'She Bangs The Drum' - amongst many others - both give it a good run for its money, but 'Sweet Sanity' has it's own category of 'The song with the best intro ever that never fulfilled its promise after the 30 second mark':
The opening verse is brilliant, godlike, but it's the chorus that smothers it. The song tries to recover itself in the subsequent verses but you're already thinking, 'Shit, that crappy chorus is going to crop up again any second now'. I bought the album on cassette on the strength of that opening thirty seconds. Not one of my wisest music purchases but not my most foolish purchase either.
What might have been. And it appears I'm not alone in thinking this. The video cuts out after 2.49 seconds and that's from an upload by Hurrah!'s old record label, Kitchenware Records. However, if you're desperate to see the full (tinnier) version of the video, then click on the link.