Upgrade potential of tablet computer
I was looking into getting a tablet computer which will help me eliminate the need for many devices when driving (separate music player to connect to the deck, gps, etc.). However, I have one burning question, which is what's the upgrade potential? I intend to purchase a basic, multifunctional tablet, mainly for driving, which will offer gps (without the need for an app or internet connection), music, and the ability to take and save notes and info. As well as access the net. With computers, I'm a diy type of guy. I build my own computer and due to the standards that exist for desktop computers, am able to upgrade my capabilities, only buying new major components when necessary - so I really project my needs and make sure I "future-proof" (although that statement is sort of an oxymoron). Nevertheless, I stay away from laptops, only intending on having one if I can put it together myself, much like a desktop. With tablets being fairly new to the market, I'm still researching ways in which I could put one together so as to have the upgrade flexibility that I want, but in the meantime, I just wanted to know if tablets have upgrade capabilities (swapping processors, etc. when better ones become available) or are they similar to laptops in the sense that what you buy today, will be old by next week, and ancient in a month, leaving you stuck in an endless buying cycle of everything but the most crucial hardware components? Thanks!