I got a decent deal on a factory refurbished mid-2015 top-of-line 15" MBP, so I now have money ready for that Canon 24mm tilt shift lens, also refurbished ...
I'm with ya. I just bought a 2011 17" MBP (the last year they were made), with matte screen, quad-i7, 16GB RAM, 500GB SSD, with a few dents for less than $1k. Now my "legacy" core-2 duo can be recycled. The speed bump is gladly noticeable. Since it's used on location, and not for post production, it should last me another few years.