Hey guys, I'm in a little predicament deciding between the 2015 MBA and 2015 rMBP (both 13" screens).
If money wasn't an issue it would be the rMBP every day of the week due to the significantly better performance (8GB RAM, 2.7GHz), display (2560x1600), very good battery life (10hrs) and extra features (different inputs, new Force Touch track pad etc). The only negative it seems with this laptop is the price, RRP at $1799, but I would wait for the inevitable DSE 15% off MacBooks, making it $1529.15.
So the reason I'm considering the MBA is because of the recent eBay deal, potentially being able to purchase it at $974. As my University degree doesn't necessarily need the performance and display a rMBP provides (I'd only use it for watching lectures, doing assignments and potentially some minor games/playing around with designs as a hobby), this MacBook is very tempting at the price. The battery life is better than the rMBP at 12 hours and it's a little lighter than the Pro, but that's where the advantages end. It's only got 4GB of RAM, it's display is only 1440x900 and only a 1.6GHz processor. It's design is also less favourable to the rMBP, and doesn't include the new Force Touch track pad and lacks some inputs.
So what would you do? I can either buy the MBA now at the favourable price of $974, or wait for a DSE deal and buy the rMBP later at $1529.15.
TL;DR: The price of the MBA is around $500 less than the rMBP, and I can't decide whether all of the advantages of the rMBP outweigh the price of the MBA.
Disclaimer: I'm quite determined on getting a MacBook, and although I've considered other cheaper options with higher specs, I like the build quality, design, operating system and service included with a MacBook.
Decision: Coincidentally reflected by the current poll (23-17 in favour of the rMBP), I'm probably going to choose the rMBP over the MBA by the slimmest of margins. Thanks to everyone that has voted and discussed my options in the post, there's been some excellent feedback that really has helped me make a more informed decision. Feel free to continue to vote on and discuss what one you think is better! :)
Get the MacBook Pro with Retina display. The extra processing power and specs is going to make its life longer so you don't need to upgrade often.