Would it be worth spending an extra $800 on the new late model 15-inch: 2.6GHz with Retina display
Specifications
2.6GHz quad-core Intel Core i7
Turbo Boost up to 3.8GHz
16GB 1600MHz memory
1TB PCIe-based Flash Storage
Intel Iris Pro Graphics
NVIDIA GeForce GT 750M
with 2GB GDDR5 memory
Built-in battery (8 hours)2
or
Refurbished 15.4-inch MacBook Pro 2.8GHz Quad-core Intel i7 with Retina Display
Originally released February 2013
15.4-inch (diagonal) Retina display; 2880-by-1800 resolution at 220 pixels per inch
16GB of 1600MHz DDR3L SDRAM
768GB Flash Storage
720p FaceTime HD Camera
NVIDIA GeForce GT 650M with 1GB of GDDR5 memory
Specifications
2.6GHz quad-core Intel Core i7
Turbo Boost up to 3.8GHz
16GB 1600MHz memory
1TB PCIe-based Flash Storage
Intel Iris Pro Graphics
NVIDIA GeForce GT 750M
with 2GB GDDR5 memory
Built-in battery (8 hours)2
or
Refurbished 15.4-inch MacBook Pro 2.8GHz Quad-core Intel i7 with Retina Display
Originally released February 2013
15.4-inch (diagonal) Retina display; 2880-by-1800 resolution at 220 pixels per inch
16GB of 1600MHz DDR3L SDRAM
768GB Flash Storage
720p FaceTime HD Camera
NVIDIA GeForce GT 650M with 1GB of GDDR5 memory