students have a lot of money these days.
the RMBP will probably make more sense to wait on since there's barely anything retina-optimized and i imagine a lot of the usual civ tools won't be updated for retina for a long time, if ever.
Actually, I believe Autodesk and Adobe were the TWO mentioned 3rd party developers at the 'Unveiling' of the rMBP. I can't THINK of a better application to be developed, written, and built to take advantage of retina graphics (along with Photo/Video software)---the Autodesk and it's offerings. I'd bet by the end of the year they've got 'er up to date to take advantage. In fact...using AutoCad on a 27" at it's 25xx/19xx resolution is brilliant!
My father is an electrical engineer...still has his slide rule and drafting kit

Chatting with him about calculators in the 60's is a hoot---compared to today's engineering tools...I don't think there's a machine on the market that could provide and engineering student with all the tools an rMBP can.
First generation...SURE! But Apple typically doesn't have those first gen growing pains from my experience. Ala iPhone 1, iPad 1, even the newly redesigned MBA---definitely a BIG step up from the original Air, but it was no slouch for it's time (while everyone else was attempting to get folks to purchase Netbooks). I'm kind of in between here...as I'm also contemplating the rMBP but this specific reason holds me back...even though my beliefs are listed. I just feel like this computer is an engineering marvel...and an actual, REAL upgrade for the entire line-up of laptop computing...the screen rez, the use of SSDs, decent/discreet graphics, excellent processing...USB3 and Thunderbolt and HDMI...everything we've ALL been asking for in one tidy little package. It's an amazing machine!
8.50$ isn't a really good payment. I got 12 while working for a construction company, where my task was to lay pavement the whole day. So actually I guess that as a Student (who actually knows what he is studying), you can get quite a good salary. I talked to continental for example and they said I would get 14 per hour when I work for them as a coder (mainly coding failure analysis).
For the lazy:
14 equals 17$
12 equals 15$
and 8.50$ equals 6,70
It seems like the payment in USA is quite bad

.
Really? How much 'Tax' do you pay? Locally? Federally? From what I've heard, you're tax system is a helluva lot more significant than ours in the US. Not that we've gotten ourselves in a bit of hot water these days...but it seems the same across the pond, economy-wise...
...and how the hell did we get in to folks' salaries in this discussion? Ridiculous!! For all we know, the OP is a Neuro-Surgeon and looking to get his/her engineering degree to develop new medical tools and innovative medical products....maybe he's already an engineer in one of several other engineering fields....maybe he/she is independently wealthy? Who Gives a Sh**, really?
Not sure why anyone has to discount what anyone else makes either. Seems very silly....when perhaps 99% of us enjoying MacRumors are also enjoying the top 5 or 10% of wealth in the WORLD!
Hate the cliché....but come on, "First World....Challenges, maybe?"
To the OP---I own many Macs as we run an A/V production business. It's how I have paid my mortgage for over two decades. Love my MacBook Airs! My wife and I both have 11"ers...and I've also got a 2012 13" that I just picked up last week. I also have a 17" MBP and understand the need for both. In my occupation, it's essential...for most, probably not. I don't think so many assumptions ought to be made about what another person makes (money-wise) or needs (computer-wise).
Instead, we ought to offer advice specific to his/her query, no?
Jer