Are concert tickets always ‘bait and switch’?

Super Diamond on FacebookGGRRRR!!! WHEN does this become ‘bait and switch’?

The House of Blues Anaheim website has the price for Super Diamond listed at "$20" for the show on March 1st, 2013 – but when you click the "Buy Tickets" button, the ticket suddenly jumps to "$29"!!

I’d love to go see these guys, but not sure I want to pay a $9 service fee… for that matter, I don’t want to pay a $2 service fee – why can’t they just list the frickin’ price as the ACTUAL price!