Could I make an immortal Ps3/360?

Build each individual part from diamond. Just kidding, i don't think there really is a way, it's a shame big companies like sony do it now. It's all for money. Like any company, Sony probably had 3D tellies back in the 90's but didn't release them straight awaybecausee they figured bringing out something new every year will make more money than bringing out the best thing straight away. A lot of products now are made to last the warranty, so you cant get it fixed cheap, so just choose to buy the upgrade. I personally love modding consoles (fitting LED lights, cooling fans, Transparent body parts) that's probably the limit though I'm afraid :( You could do good soldering though, fit a very good cooling fan, maybe a new graphics card. PC is probably the best in this criteria, there's so much more you can do with them