Your first assessment already shows your flaws. Sony NEVER markets it as a PC, so of course the PS3 is gonna be a "half-thought" PC. So does the Nintendo Wii and the 360, so your assessment there is moot.

Assess these consoles as "consoles" not "PC". How much was the Xbox 360 games when it first launched and only US versions of the games are available at that time? It was USD60 and more as well. The price went down with the introduction of Asian games, and with time, and as more game discs are printed in bulks, MS can pass the printing cost savings to the customers by lowering the retail price of the games. How many PS3 consoles are there in the world right now? Does it make sense to print 1 million copies of a PS3 games when there are hardly a million PS3 consoles out there? You can print 1 million copies of 360 games and bulk printing saves up on cost. Get the economics by scale here?

And choosing a console by the virtue of its piratability shows your priorities and where you put gaming in your life. I have nothing else to say about this.