Tell you what though Andrew, it would make a fab ladder. You could put them in order of how they sound and then see whether it follows in line with how much they cost. I've always been a fan of an outright mark, from which you afterwards add the price. That way it's possible to compare two items, one gets 65% and another 73% and when you see the 73% cost £200 less you realise it's a bargin.
By always looking at value for money INSIDE your star ratings, it's never possible to know which box is actually better.
Does that make sense?