To a fan of real estate and upgradeable parts, huge battery it was always going to be my next MBP.
I watched and waited on eBay for months, until I snapped up a late 2011 17 for 860 bucks equivalent a fortnight ago. Spent nearly 200 bucks on 16gb ram kit from crucial and after selling my 2010 17 made about 120 bucks profit.
I immediately stripped mine down and repasted/lapped the heatsinks with AS-5 and got a 20C drop in temps for both the CPU and GPU to prolong its life. These sandy bridge chips get damn hot and the GPU's, especially in the early 2011's 15 inch are failing in droves now after a couple of years. If it does go will get my GPU replaced with a fresh lead soldered one so it lasts as Apples replacement logic boards seem to fail a lot and only offer a 90 day warranty.
With my 1tb 840 evo it boots OSX in under 10 seconds, windows 7 about 18 to fully load the desktop. Not bad for a big old bird and ideal for my uses.