I get endless press releases about various bands playing a "secret show" - it's so secret that they're sending out press releases.

What's the score with this idiot tosh? Is it something that's been made up as a marketing tool in a "oooo, I got tickets to their secret show, I'm such a big fan" kind of way, or are they shows that they thought they didn't need publicity to sell tickets for but then found they couldn't sell the tickets?

Either way, they're generally for bands I wouldn't for a second waste my time on seeing. Does anyone get suckered by these really?