I started work about 3 years ago, and so bought new products then: iPhone 4S, MacBook Pro (maxed specs) and a first generation iPad (16GB Wifi) for when traveling. Now it's 3 years later and I'm sure you can guess what's happened: everything's started dying. I've also just started my PhD, so do not have the financial flexibility that I had when I started work. I'm going to hold onto my 4S for another product cycle- the battery dies but it still functions relatively okay. My iPad is going well - battery is good, but I can't upgrade it past iOS 5 and it is a little slow. My MacBook Pro is another story, with the logic board playing up - sometimes just crashing when things get too much for the computer. I did a test at the Apple Store and it failed the relevant logic board test. They quoted $350 to repair. I haven't had a crash since upgrading to Mavericks last week. So, my questions to the experts out there is thus: Should I buy a new MacBook Pro, MacBook Air, or the iPad Air? Portability is important but not essential: I've found myself leaving my Macbook Pro at home and taking my iPad to class/meetings for notes. I like playing games on my computer, so having a Macbook Pro was important to me, but given I'll have this one sitting around, not sure whether the upgrade is necessary? Price is a key concern for me, and once I get into writing more seriously, being able to reference while I write means that the iPads are sometimes not the best devices. Thoughts?