15" cMBP: 2.6/4GB RAM/500GB HD = $1,999
- Upgrade to 16GB RAM: $80
- 500GB SSD: roughly $300
New total: $2,380
15" rMBP: 2.7/16GB RAM/500GB SSD = $2,799
$2,380 vs. $2,799. That's a $419 difference.
You do get a better screen and 0.1 Ghz faster processor. That's up to the OP to decide if he's willing to pay $419 for that.
Better cooling, quieter, lighter, vastly better display; contrast, colour accuracy, viewing angles, reduced glare, scalable display increasing work area, full flash architecture, far less likelihood of throttling, as ever the uneducated simply forgo many of the engineering advancements Apple`s Retina brings to the market. There is a lot more to the new MBP than just a better display, and those of us that actually own & use both Retina and standard MBP`s will testify to that. i love how the "hater`s" trivialise and discount as much as possible when referring to the new MBP.
The fact that some specifications align; CPU, GPU etc does not mean that you can directly compare the two machines and simply boil it down to one have a better display and a higher price tag, it`s a touch more complex.
So just maybe it`s worth the extra cost over no name RAM & SSD, and the potential to void warrantee in the event of accidental damage. Nor does he/she need to go for the high end model, the base model offers more than enough performance for the average user, 16Gb is for serious work and storage is what it is.
Equally unless it`s a prerequisite a 15" MBP is a very expensive notebook for school use, i would be tempted to look at the PC market, save more than half on cost and still have a fast notebook, and keep the difference for another day "food for thought"...