Just out of curiosity, which MBP do you prefer? Also, can you say why in the comments. I'm looking into purchasing a new MBP
PS: Your preference can include the no-longer-made 15 & 17" cMBPs
I'm guessing we'll be talking about this for a few more years, even though the supply of the cMBPs is drying up
I would have loved to get a retina, but the following things made me order a refurbished cMBP instead:
1. Built in ethernet. Sure, I could get a thunderbolt adapter, but I think dongles like that are even more antiquated than optical disks. If you don't use wired networks, I guess it's a moo point (a cow's opinion

).
2. Kensington lock slot. There are work arounds for that, but they are way too ugly.
3. If I want a large capacity SSD inside, buying a cMBP and upgrading it myself cost half as much as an rMBP with the same capacity. Sure, it may not be as blazingly fast as rMBP's new PCIe storage, but for $1500 I think I'll manage.
If the last was the only point, I would probably shell out the money and get the rMBP, but I would really expect a perfect device for the money. Since Apple does not make a retina device with an ethernet port and a lock slot, I guess I'll wait some more, maybe I will not need them in the future. Nobody
needs a retina screen, it's just a nice to have extra. It makes no sense to sacrifice useful functionality for it.