Sony can do and charge whatever they like, it is their product they are selling. If you do not like the way they do business, do not buy their products, period. Might as well close the discussion because all logic in the thread was summed up in last two sentences for anyone who hasn't figured this out yet.
Sony is a business. They owe you nothing. Just like Microsoft and Nintendo owe you nothing outside of what you paid for when you paid them for it.