Yes, £80 a month - £20 a week for a 3-hour session, with several specialist teachers. I did say it was pricey, but when I was looking into things Stagecoach was more, so it seems to be around the going rate.
She used to do ballet and tap, and this is more expensive per hour than dance classes, but the groups are smaller, she doesn't need all the leotards, tutus, ballet/tap shoes etc, we don't get charged extra for costumes for shows, or for the DVDs with their productions on etc (the ballet school seemed to rely on making lots of money from DVDs and photos of productions), so it works out similar in the end.
I think the cheaper option for drama is the after-school groups some primary schools run, which are shorter sessions and have one teacher for much larger groups (and they don't have to pay room hire).
Feministparent - did you really mean to link to Bay State Psychological associates?