I'm normally fairly decisive about these things, and I'm also well aware that I probably won't be needing more than 8GB of RAM any time soon. The main reason I'm undecided is the low price of 16GB right now. It's only $37 more to have 16GB over 8GB. So, what would you do if you had a MacBook Pro with 4GB of RAM today, and were intending to upgrade the RAM: 1) Buy the 8GB of RAM for $45. 2) Buy the 16GB of RAM for $82. Thanks in advance.