From an earlier post from Guest Tom Bliss "The break point is about £8. But that would mean carrying around a big bag of coins and faffing about at the CD stall - and life's too short!"
This is total BULL, how can anyone justify such a price structure. It means you can only charge 5, 10, 20 units of your available paper money for your product. There is nothing wrong with making change, that's what it's for, to charge a correct price for a product, not more, or less. If your CD is worth 12 quid and you can justify the price, then sell it for that.
I belong to a group who put on one concert a year, it comes with or without a meal. Due to increases by our caterer last year our costs were going up around 2$. In my absence due to holidays, the group decided to round up the costs (to avoid making change) the result was around a 10-15% drop in overall ticket sales. What good does that do for CD sales?.
More Bums in Seats = more CD sales. Therfore it is a better bet to keep the ticket costs low than the CD costs.
JohnB