$1000 for a 768GB SSD upgrade ???
Unbelievable price!
In the UK, SSDs seem to be hovering around the 50p/Gig mark currently.
So if you buy from Apple, you're paying $1.30 per gig and losing the stock drive in the process.
EDIT: Just looked at the UK site and it's £800 for the 768GB upgrade. So only double what I'd expect to pay at £1.04 per gig. Bargain!!
There is a bell curve on SSD prices, everywhere. 600GB SSD drives cost about $900. Or $1.50/GB. However, this is not an SSD drive, technically.
All PC manufacturers do this, you lose the stock component when you upgrade - I hate it but that's the way it is.
I'm looking at buying a MBPr sometime in the next month, probably not going to spring for the 768GB since I have so much storage all over my network at home and can't justify it.