So as for 2016, do you guys think it will worth getting MBP late 2011 17 inche?
Pros:
I've had an Early 2011 17" since, well, early 2011. I put a 250GB SSD in it about 3 years ago (*essential* upgrade - far more impact that an incrementally faster CPU), chucked out the optical drive and put the old 750GB HD in the optical slot, so I've got 1TB of storage in total - I'm about to replace the 250GB with a 500GB that I have spare, so there will be more storage than you can fit in a modern rMBP.
Its a great machine in many ways and I have no complaints in terms of "getting stuff done" - it runs rings around my "work" 2010 MBP 13" so it's been shuttling between home and work for the last couple of years. I'd expect a new rMBP to be faster but not "night and day".
...RAM is
officially user-upgradeable, main HD is
officially user-upgradeable (the OptiBay trick for a second HD isn't official, and a bit trickier to perform but not rocket science)
and it still has an Ethernet port and an ExpressCard slot.
...the screen is pretty good - its not retina but does have a higher pixel density than the non-retina 13"/15" so it's certainly not fuzzy and, like it or not, 17" is still bigger than 15".
Cons:
Mostly what Samualsan2001 already said above.
- no USB 3. I've been using a Caldigit ExpressCard USB3 adapter, but that isn't supported by El Cap. so I'm stuck on Mavericks for the moment. You could also add USB3 via Thunderbolt (but the cheaper TB-to-USB3 dongles
- no Thunderbolt2 isn't an issue for me - what IS an issue is only having one TB1 port which is
also the only external display connections. I mostly run an external display which rules out using cheaper Thunderbolt drives that don't have a daisy-chain port. I'd like to run dual external displays - the GPU is quite capable of that but you can only achieve it by buying at least 2 Thunderbolt devices. rMBP has 2xThunderbolt AND a HDMI.
- it was amazingly thin and light in its day, and makes comparable 17" quad-i7 PCs look like bricks, but having recently lugged it through airports etc on a trip (London Heathrow feels like you're crossing the Atlantic on foot) I was really, really lusting after a rMBP.
- the GPU issue is the deal breaker: mine failed last year and was fixed without fuss. 1 failure after 4 years daily use & fixed for free isn't the end of the world, so I'm not too upset, but - since its not clear that the 'fix' is anything other than another roll of the dice - I wouldn't touch a second-hand one with a bargepole unless it was really, really cheap.
Shame, because the other 'cons' are all tolerable and it would still make a great workhorse if you didn't insist on the bleeding edge.
I'm hoping mine lasts until the new models come out...