I have decided to buy MacBook Pro for the first time, well, actually a Mac computer for the first time. I have been on Windows PC for years and i am fed up with it. At first i thought mac mini will be the best solution but i decided to go with MacBook Pro retina because of portability. My questions as first time user in need of advice are: 1. How reliable is MacBook Pro retina...i know that almost everything is soldered to the board except SSD. What happens if RAM dies and warranty has expired. It's non replaceable? And battery too, what to do when it dies or becomes weak or any other non replaceable part break? Am i destined to drop it in trash after these happen? 2. Is it possible to extend warranty after it expires with Mac computers or is it not? Is it apple care or can i extend regular warranty, and if i can how many times can i do that? 3. And final one. I need my computer to work all day non stop. Can MacBook handle it. I intend to use it with my monitor at home when i am not outside I know that these questions seem stupid to most of you but you have to understand that this is big investment for me and i need to know what am i getting myself in to as first time mac user. Is the answer to all these questions "It's the way it is...deal with it" or you have some advice for me, from your personal experience?