Just doesn't make sense though does it, let's say each copy of Destiny, the developers gets £20, he retailers have to pay for logistics etc, Sony or MS just have to keep their servers going. Maybe they are not geared up for massive demand of new games yet or maybe they are just milking it for all they can get while they can?
Hopefully once things start to gain speed on the digital side you will have the option to pay a monthly subscription and play whatever games you want (within reason)